cakephp2-php8/cake/tests/cases/libs/multibyte.test.php

<?php
/* SVN FILE: $Id$ */
/**
 * Short description for file.
 *
 * Long description for file
 *
 * PHP versions 4 and 5
 *
 * CakePHP(tm) Tests <https://trac.cakephp.org/wiki/Developement/TestSuite>
 * Copyright 2005-2008, Cake Software Foundation, Inc.
 *								1785 E. Sahara Avenue, Suite 490-204
 *								Las Vegas, Nevada 89104
 *
 *  Licensed under The Open Group Test Suite License
 *  Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright		Copyright 2005-2008, Cake Software Foundation, Inc.
 * @link				https://trac.cakephp.org/wiki/Developement/TestSuite CakePHP(tm) Tests
 * @package			cake.tests
 * @subpackage		cake.tests.cases.libs
 * @since			CakePHP(tm) v 1.2.0.6833
 * @version			$Revision$
 * @modifiedby		$LastChangedBy$
 * @lastmodified	$Date$
 * @license			http://www.opensource.org/licenses/opengroup.php The Open Group Test Suite License
 */
App::import('Core', 'Multibyte');
/**
 * Short description for class.
 *
 * @package    cake.tests
 * @subpackage cake.tests.cases.libs
 */
class MultibyteTest extends UnitTestCase {

	function testUtf8() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::utf8($string);
		$expected = array(33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
								58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
								83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105,
								106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126);
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::utf8($string);
		$expected = array(161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181,
								182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200);
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::utf8($string);
		$expected = array(201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221,
								222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242,
								243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263,
								264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
								285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300);
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::utf8($string);
		$expected = array(301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321,
								322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342,
								343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363,
								364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384,
								385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400);
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = Multibyte::utf8($string);
		$expected = array(401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421,
								422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442,
								443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463,
								464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484,
								485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500);
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::utf8($string);
		$expected = array(601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621,
								622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642,
								643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
								664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684,
								685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700);
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::utf8($string);
		$expected = array(1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041,
								1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051);
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::utf8($string);
		$expected = array(1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069,
								1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087,
								1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100);
		$this->assertEqual($result, $expected);

		$string = 'չպջռսվտ';
		$result = Multibyte::utf8($string);
		$expected = array(1401, 1402, 1403, 1404, 1405, 1406, 1407);
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::utf8($string);
		$expected = array(1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615);
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::utf8($string);
		$expected = array(10032, 10033, 10034, 10035, 10036, 10037, 10038, 10039, 10040, 10041, 10042, 10043, 10044,
								10045, 10046, 10047, 10048, 10049, 10050, 10051, 10052, 10053, 10054, 10055, 10056, 10057,
								10058, 10059, 10060, 10061, 10062, 10063, 10064, 10065, 10066, 10067, 10068, 10069, 10070,
								10071, 10072, 10073, 10074, 10075, 10076, 10077, 10078);
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::utf8($string);
		$expected = array(11904, 11905, 11906, 11907, 11908, 11909, 11910, 11911, 11912, 11913, 11914, 11915, 11916, 11917, 11918, 11919,
								11920, 11921, 11922, 11923, 11924, 11925, 11926, 11927, 11928, 11929, 11931, 11932, 11933, 11934, 11935, 11936,
								11937, 11938, 11939, 11940, 11941, 11942, 11943, 11944, 11945, 11946, 11947, 11948, 11949, 11950, 11951, 11952,
								11953, 11954, 11955, 11956, 11957, 11958, 11959, 11960, 11961, 11962, 11963, 11964, 11965, 11966, 11967, 11968,
								11969, 11970, 11971, 11972, 11973, 11974, 11975, 11976, 11977, 11978, 11979, 11980, 11981, 11982, 11983, 11984,
								11985, 11986, 11987, 11988, 11989, 11990, 11991, 11992, 11993, 11994, 11995, 11996, 11997, 11998, 11999, 12000);
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::utf8($string);
		$expected = array(12101, 12102, 12103, 12104, 12105, 12106, 12107, 12108, 12109, 12110, 12111, 12112, 12113, 12114, 12115, 12116,
								12117, 12118, 12119, 12120, 12121, 12122, 12123, 12124, 12125, 12126, 12127, 12128, 12129, 12130, 12131, 12132,
								12133, 12134, 12135, 12136, 12137, 12138, 12139, 12140, 12141, 12142, 12143, 12144, 12145, 12146, 12147, 12148,
								12149, 12150, 12151, 12152, 12153, 12154, 12155, 12156, 12157, 12158, 12159);
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::utf8($string);
		$expected = array(45601, 45602, 45603, 45604, 45605, 45606, 45607, 45608, 45609, 45610, 45611, 45612, 45613, 45614, 45615, 45616,
								45617, 45618, 45619, 45620, 45621, 45622, 45623, 45624, 45625, 45626, 45627, 45628, 45629, 45630, 45631, 45632,
								45633, 45634, 45635, 45636, 45637, 45638, 45639, 45640, 45641, 45642, 45643, 45644, 45645, 45646, 45647, 45648,
								45649, 45650, 45651, 45652, 45653, 45654, 45655, 45656, 45657, 45658, 45659, 45660, 45661, 45662, 45663, 45664,
								45665, 45666, 45667, 45668, 45669, 45670, 45671, 45672, 45673, 45674, 45675, 45676, 45677, 45678, 45679, 45680,
								45681, 45682, 45683, 45684, 45685, 45686, 45687, 45688, 45689, 45690, 45691, 45692, 45693, 45694, 45695, 45696,
								45697, 45698, 45699, 45700);
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::utf8($string);
		$expected = array(65136, 65137, 65138, 65139, 65140, 65141, 65142, 65143, 65144, 65145, 65146, 65147, 65148, 65149, 65150, 65151,
								65152, 65153, 65154, 65155, 65156, 65157, 65158, 65159, 65160, 65161, 65162, 65163, 65164, 65165, 65166, 65167,
								65168, 65169, 65170, 65171, 65172, 65173, 65174, 65175, 65176, 65177, 65178, 65179, 65180, 65181, 65182, 65183,
								65184, 65185, 65186, 65187, 65188, 65189, 65190, 65191, 65192, 65193, 65194, 65195, 65196, 65197, 65198, 65199,
								65200);
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::utf8($string);
		$expected = array(65201, 65202, 65203, 65204, 65205, 65206, 65207, 65208, 65209, 65210, 65211, 65212, 65213, 65214, 65215, 65216,
								65217, 65218, 65219, 65220, 65221, 65222, 65223, 65224, 65225, 65226, 65227, 65228, 65229, 65230, 65231, 65232,
								65233, 65234, 65235, 65236, 65237, 65238, 65239, 65240, 65241, 65242, 65243, 65244, 65245, 65246, 65247, 65248,
								65249, 65250, 65251, 65252, 65253, 65254, 65255, 65256, 65257, 65258, 65259, 65260, 65261, 65262, 65263, 65264,
								65265, 65266, 65267, 65268, 65269, 65270, 65271, 65272, 65273, 65274, 65275, 65276);
		$this->assertEqual($result, $expected);


		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::utf8($string);
		$expected = array(65345, 65346, 65347, 65348, 65349, 65350, 65351, 65352, 65353, 65354, 65355, 65356, 65357, 65358, 65359, 65360,
								65361, 65362, 65363, 65364, 65365, 65366, 65367, 65368, 65369, 65370);
		$this->assertEqual($result, $expected);


		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::utf8($string);
		$expected = array(65377, 65378, 65379, 65380, 65381, 65382, 65383, 65384, 65385, 65386, 65387, 65388, 65389, 65390, 65391, 65392,
								65393, 65394, 65395, 65396, 65397, 65398, 65399, 65400);
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::utf8($string);
		$expected = array(65401, 65402, 65403, 65404, 65405, 65406, 65407, 65408, 65409, 65410, 65411, 65412, 65413, 65414, 65415, 65416,
								65417, 65418, 65419, 65420, 65421, 65422, 65423, 65424, 65425, 65426, 65427, 65428, 65429, 65430, 65431, 65432,
								65433, 65434, 65435, 65436, 65437, 65438);
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::utf8($string);
		$expected = array(292, 275, 314, 316, 335, 44, 32, 372, 337, 345, 316, 271, 33);
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$result = Multibyte::utf8($string);
		$expected = array(72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33);
		$this->assertEqual($result, $expected);

		$string = '¨';
		$result = Multibyte::utf8($string);
		$expected = array(168);
		$this->assertEqual($result, $expected);

		$string = '¿';
		$result = Multibyte::utf8($string);
		$expected = array(191);
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$result = Multibyte::utf8($string);
		$expected = array(269, 105, 110, 105);
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$result = Multibyte::utf8($string);
		$expected = array(109, 111, 263, 105);
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$result = Multibyte::utf8($string);
		$expected = array(100, 114, 382, 97, 118, 110, 105);
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$result = Multibyte::utf8($string);
		$expected = array(25226, 30334, 24230, 35774, 20026, 39318, 39029);
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = Multibyte::utf8($string);
		$expected = array(19968, 20108, 19977, 21608, 27704, 40845);
		$this->assertEqual($result, $expected);
	}

	function testAscii() {
		$utf8 = array(33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
							58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
							83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105,
							106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126);
		$result = Multibyte::ascii($utf8);

		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$utf8 = array(161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181,
								182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200);
		$result = Multibyte::ascii($utf8);

		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$utf8 = array(201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221,
								222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242,
								243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263,
								264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
								285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300);
		$result = Multibyte::ascii($utf8);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$utf8 = array(301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321,
								322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342,
								343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363,
								364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378, 379, 380, 381, 382, 383, 384,
								385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421,
								422, 423, 424, 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442,
								443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463,
								464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484,
								485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, 500);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621,
								622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642,
								643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
								664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684,
								685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, 700);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041,
								1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051);
		$expected = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069,
								1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087,
								1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100);
		$expected = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(1401, 1402, 1403, 1404, 1405, 1406, 1407);
		$expected = 'չպջռսվտ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615);
		$expected = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(10032, 10033, 10034, 10035, 10036, 10037, 10038, 10039, 10040, 10041, 10042, 10043, 10044,
								10045, 10046, 10047, 10048, 10049, 10050, 10051, 10052, 10053, 10054, 10055, 10056, 10057,
								10058, 10059, 10060, 10061, 10062, 10063, 10064, 10065, 10066, 10067, 10068, 10069, 10070,
								10071, 10072, 10073, 10074, 10075, 10076, 10077, 10078);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(11904, 11905, 11906, 11907, 11908, 11909, 11910, 11911, 11912, 11913, 11914, 11915, 11916, 11917, 11918, 11919,
								11920, 11921, 11922, 11923, 11924, 11925, 11926, 11927, 11928, 11929, 11931, 11932, 11933, 11934, 11935, 11936,
								11937, 11938, 11939, 11940, 11941, 11942, 11943, 11944, 11945, 11946, 11947, 11948, 11949, 11950, 11951, 11952,
								11953, 11954, 11955, 11956, 11957, 11958, 11959, 11960, 11961, 11962, 11963, 11964, 11965, 11966, 11967, 11968,
								11969, 11970, 11971, 11972, 11973, 11974, 11975, 11976, 11977, 11978, 11979, 11980, 11981, 11982, 11983, 11984,
								11985, 11986, 11987, 11988, 11989, 11990, 11991, 11992, 11993, 11994, 11995, 11996, 11997, 11998, 11999, 12000);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(12101, 12102, 12103, 12104, 12105, 12106, 12107, 12108, 12109, 12110, 12111, 12112, 12113, 12114, 12115, 12116,
								12117, 12118, 12119, 12120, 12121, 12122, 12123, 12124, 12125, 12126, 12127, 12128, 12129, 12130, 12131, 12132,
								12133, 12134, 12135, 12136, 12137, 12138, 12139, 12140, 12141, 12142, 12143, 12144, 12145, 12146, 12147, 12148,
								12149, 12150, 12151, 12152, 12153, 12154, 12155, 12156, 12157, 12158, 12159);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(45601, 45602, 45603, 45604, 45605, 45606, 45607, 45608, 45609, 45610, 45611, 45612, 45613, 45614, 45615, 45616,
								45617, 45618, 45619, 45620, 45621, 45622, 45623, 45624, 45625, 45626, 45627, 45628, 45629, 45630, 45631, 45632,
								45633, 45634, 45635, 45636, 45637, 45638, 45639, 45640, 45641, 45642, 45643, 45644, 45645, 45646, 45647, 45648,
								45649, 45650, 45651, 45652, 45653, 45654, 45655, 45656, 45657, 45658, 45659, 45660, 45661, 45662, 45663, 45664,
								45665, 45666, 45667, 45668, 45669, 45670, 45671, 45672, 45673, 45674, 45675, 45676, 45677, 45678, 45679, 45680,
								45681, 45682, 45683, 45684, 45685, 45686, 45687, 45688, 45689, 45690, 45691, 45692, 45693, 45694, 45695, 45696,
								45697, 45698, 45699, 45700);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(65136, 65137, 65138, 65139, 65140, 65141, 65142, 65143, 65144, 65145, 65146, 65147, 65148, 65149, 65150, 65151,
								65152, 65153, 65154, 65155, 65156, 65157, 65158, 65159, 65160, 65161, 65162, 65163, 65164, 65165, 65166, 65167,
								65168, 65169, 65170, 65171, 65172, 65173, 65174, 65175, 65176, 65177, 65178, 65179, 65180, 65181, 65182, 65183,
								65184, 65185, 65186, 65187, 65188, 65189, 65190, 65191, 65192, 65193, 65194, 65195, 65196, 65197, 65198, 65199,
								65200);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(65201, 65202, 65203, 65204, 65205, 65206, 65207, 65208, 65209, 65210, 65211, 65212, 65213, 65214, 65215, 65216,
								65217, 65218, 65219, 65220, 65221, 65222, 65223, 65224, 65225, 65226, 65227, 65228, 65229, 65230, 65231, 65232,
								65233, 65234, 65235, 65236, 65237, 65238, 65239, 65240, 65241, 65242, 65243, 65244, 65245, 65246, 65247, 65248,
								65249, 65250, 65251, 65252, 65253, 65254, 65255, 65256, 65257, 65258, 65259, 65260, 65261, 65262, 65263, 65264,
								65265, 65266, 65267, 65268, 65269, 65270, 65271, 65272, 65273, 65274, 65275, 65276);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(65345, 65346, 65347, 65348, 65349, 65350, 65351, 65352, 65353, 65354, 65355, 65356, 65357, 65358, 65359, 65360,
								65361, 65362, 65363, 65364, 65365, 65366, 65367, 65368, 65369, 65370);
		$expected = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(65377, 65378, 65379, 65380, 65381, 65382, 65383, 65384, 65385, 65386, 65387, 65388, 65389, 65390, 65391, 65392,
								65393, 65394, 65395, 65396, 65397, 65398, 65399, 65400);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(65401, 65402, 65403, 65404, 65405, 65406, 65407, 65408, 65409, 65410, 65411, 65412, 65413, 65414, 65415, 65416,
								65417, 65418, 65419, 65420, 65421, 65422, 65423, 65424, 65425, 65426, 65427, 65428, 65429, 65430, 65431, 65432,
								65433, 65434, 65435, 65436, 65437, 65438);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(292, 275, 314, 316, 335, 44, 32, 372, 337, 345, 316, 271, 33);
		$expected = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33);
		$expected = 'Hello, World!';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(168);
		$expected = '¨';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(191);
		$expected = '¿';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(269, 105, 110, 105);
		$expected = 'čini';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(109, 111, 263, 105);
		$expected = 'moći';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(100, 114, 382, 97, 118, 110, 105);
		$expected = 'državni';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(25226, 30334, 24230, 35774, 20026, 39318, 39029);
		$expected = '把百度设为首页';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);

		$utf8 = array(19968, 20108, 19977, 21608, 27704, 40845);
		$expected = '一二三周永龍';
		$result = Multibyte::ascii($utf8);
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stripos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stripos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stripos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stripos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'É';
		$result = mb_stripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stripos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_stripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_stripos($string, $find, 40);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stripos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stripos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stripos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stripos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stripos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stripos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_stripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stripos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_stripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'DŽ';
		$result = mb_stripos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stripos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stripos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'É';
		$result = Multibyte::stripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stripos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::stripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::stripos($string, $find, 40);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stripos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stripos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stripos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stripos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stripos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stripos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::stripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stripos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::stripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::stripos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'DŽ';
		$result = Multibyte::stripos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStristr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = mb_stristr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stristr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = mb_stristr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stristr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = mb_stristr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stristr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = mb_stristr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = mb_stristr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stristr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_stristr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stristr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = mb_stristr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stristr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = mb_stristr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stristr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_stristr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stristr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_stristr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stristr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_stristr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stristr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_stristr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stristr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_stristr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stristr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_stristr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stristr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stristr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stristr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stristr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_stristr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stristr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_stristr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stristr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = mb_stristr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_stristr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stristr($string, $find);
		$expected = 'o, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hell';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_stristr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_stristr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_stristr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_stristr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_stristr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = mb_stristr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = mb_stristr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stristr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = mb_stristr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stristr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = mb_stristr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stristr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_stristr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stristr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_stristr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '二周';
		$result = mb_stristr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStristr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'f';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'å';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'ċ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stristr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'f';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'Μ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'þ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'Ʀ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'ї';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stristr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stristr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stristr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stristr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stristr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stristr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stristr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'Ő';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stristr($string, $find);
		$expected = 'o, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'O';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hell';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::stristr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::stristr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::stristr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'N';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stristr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'Ć';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stristr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'Ž';
		$result = Multibyte::stristr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stristr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stristr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::stristr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '二周';
		$result = Multibyte::stristr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrlen() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = mb_strlen($string);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_strlen($string);
		$expected = 30;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = mb_strlen($string);
		$expected = 61;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_strlen($string);
		$expected = 94;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = mb_strlen($string);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = mb_strlen($string);
		$expected = 28;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = mb_strlen($string);
		$expected = 49;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = mb_strlen($string);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = mb_strlen($string);
		$expected = 47;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = mb_strlen($string);
		$expected = 96;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = mb_strlen($string);
		$expected = 59;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = mb_strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = mb_strlen($string);
		$expected = 65;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = mb_strlen($string);
		$expected = 76;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = mb_strlen($string);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = mb_strlen($string);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = mb_strlen($string);
		$expected = 38;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_strlen($string);
		$expected = 13;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$result = mb_strlen($string);
		$expected = 13;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$result = mb_strlen($string);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$result = mb_strlen($string);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$result = mb_strlen($string);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$result = mb_strlen($string);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = mb_strlen($string);
		$expected = 6;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrlen() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = Multibyte::strlen($string);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::strlen($string);
		$expected = 30;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::strlen($string);
		$expected = 61;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::strlen($string);
		$expected = 94;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::strlen($string);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::strlen($string);
		$expected = 28;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::strlen($string);
		$expected = 49;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::strlen($string);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::strlen($string);
		$expected = 47;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::strlen($string);
		$expected = 96;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::strlen($string);
		$expected = 59;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::strlen($string);
		$expected = 100;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::strlen($string);
		$expected = 65;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::strlen($string);
		$expected = 76;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::strlen($string);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::strlen($string);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::strlen($string);
		$expected = 38;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::strlen($string);
		$expected = 13;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$result = Multibyte::strlen($string);
		$expected = 13;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$result = Multibyte::strlen($string);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$result = Multibyte::strlen($string);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$result = Multibyte::strlen($string);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$result = Multibyte::strlen($string);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = Multibyte::strlen($string);
		$expected = 6;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strpos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strpos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strpos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strpos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strpos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strpos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strpos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = mb_strpos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strpos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strpos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strpos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strpos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strpos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strpos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strpos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'őř';
		$result = mb_strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strpos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '一周';
		$result = mb_strpos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strpos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strpos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strpos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strpos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strpos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = Multibyte::strpos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strpos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strpos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strpos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strpos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strpos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strpos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strpos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'őř';
		$result = Multibyte::strpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strpos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '一周';
		$result = Multibyte::strpos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrrchr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrchr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrchr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrchr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrchr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrchr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrchr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrchr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strrchr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrchr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrchr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrchr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrchr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrchr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrchr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrchr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrchr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrchr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrchr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrchr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrchr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrchr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrchr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrchr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrchr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrchr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrchr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrchr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrchr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrchr($string, $find);
		$expected = 'orld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrchr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrchr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrchr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrchr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrchr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrchr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrchr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrchr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrchr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrchr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrchr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrchr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrchr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrchr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrchr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周龍';
		$result = mb_strrchr($string, $find, true);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrrchr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrchr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrchr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrchr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrchr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'orld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrchr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrchr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrchr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周龍';
		$result = Multibyte::strrchr($string, $find, true);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrrichr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrichr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrichr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrichr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrichr($string, $find);
		$expected = 'fghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrichr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcde';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrichr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrichr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrichr($string, $find);
		$expected = 'þÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüý';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrichr($string, $find);
		$expected = 'ņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅ';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strrichr($string, $find);
		$expected = 'ƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrichr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrichr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrichr($string, $find);
		$expected = 'рстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп';
		$find = 'Р';
		$result = mb_strrichr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrichr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrichr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrichr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrichr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrichr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrichr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrichr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrichr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrichr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrichr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrichr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrichr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrichr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrichr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrichr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrichr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrichr($string, $find);
		$expected = 'orld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrichr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrichr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strrichr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrichr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strrichr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrichr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrichr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrichr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrichr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrichr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrichr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrichr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrichr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrichr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrichr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '百设';
		$result = mb_strrichr($string, $find, true);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrrichr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'fghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcde';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'þÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüý';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅ';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'рстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп';
		$find = 'Р';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrichr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrichr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrichr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrichr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'orld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, W';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrichr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrichr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrichr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '百设';
		$result = Multibyte::strrichr($string, $find, true);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strripos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strripos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÓÔ';
		$result = mb_strripos($string, $find);
		$expected = 19;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strripos($string, $find);
		$expected = 69;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strripos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strripos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strripos($string, $find);
		$expected = 25;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strripos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = mb_strripos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strripos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strripos($string, $find);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strripos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strripos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strripos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strripos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strripos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = mb_strripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strripos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strripos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'dž';
		$result = mb_strripos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrripos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÓÔ';
		$result = Multibyte::strripos($string, $find);
		$expected = 19;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strripos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strripos($string, $find);
		$expected = 69;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strripos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strripos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strripos($string, $find);
		$expected = 25;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strripos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = Multibyte::strripos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strripos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strripos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strripos($string, $find);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strripos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strripos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strripos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strripos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strripos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strripos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strripos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = Multibyte::strripos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strripos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strripos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strripos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strripos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strripos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strripos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'dž';
		$result = Multibyte::strripos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strrpos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÙÚ';
		$result = mb_strrpos($string, $find);
		$expected = 25;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strrpos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strrpos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strrpos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strrpos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = mb_strrpos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strrpos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strrpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = mb_strrpos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strrpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strrpos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strrpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = mb_strrpos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strrpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strrpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strrpos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strrpos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strrpos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strrpos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strrpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = mb_strrpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strrpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strrpos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strrpos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strrpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strrpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = mb_strrpos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrrpos() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞ';
		$find = 'ÙÚ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 25;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strrpos($string, $find, 6);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strrpos($string, $find);
		$expected = 37;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 20;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'é';
		$result = Multibyte::strrpos($string, $find);
		$expected = 32;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 24;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 40;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 39;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strrpos($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strrpos($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::strrpos($string, $find, 5);
		$expected = 36;
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strrpos($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strrpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strrpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strrpos($string, $find);
		$expected = 31;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strrpos($string, $find);
		$expected = 26;
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 46;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 45;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 10;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 15;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 16;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strrpos($string, $find);
		$expected = 17;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrpos($string, $find);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strrpos($string, $find, 5);
		$expected = 8;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strrpos($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strrpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strrpos($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = Multibyte::strrpos($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_strstr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strstr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = mb_strstr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strstr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = mb_strstr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strstr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = mb_strstr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strstr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strstr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_strstr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strstr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = mb_strstr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strstr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_strstr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strstr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_strstr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strstr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = mb_strstr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strstr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_strstr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strstr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_strstr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strstr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_strstr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strstr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = mb_strstr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strstr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strstr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strstr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = mb_strstr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strstr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_strstr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strstr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_strstr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strstr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_strstr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_strstr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strstr($string, $find);
		$expected = 'o, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hell';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strstr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strstr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = mb_strstr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strstr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = mb_strstr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strstr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_strstr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strstr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_strstr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strstr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_strstr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strstr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_strstr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strstr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_strstr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '二周';
		$result = mb_strstr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ0123456789';
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ABCDE';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$find = 'Å';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ÀÁÂÃÄ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ĀĂĄĆĈ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strstr($string, $find);
		$expected = 'FGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$find = 'F';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDE';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$find = 'µ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$find = 'Þ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'Ņ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃń';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$find = 'Ƹ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$find = 'ʀ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ЀЁЂЃЄЅІ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strstr($string, $find);
		$expected = 'РСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'МНОП';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strstr($string, $find);
		$expected = 'نهوىيًٌٍَُ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'فقكلم';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strstr($string, $find);
		$expected = '✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strstr($string, $find);
		$expected = '⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strstr($string, $find);
		$expected = '⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strstr($string, $find);
		$expected = '눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눻';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｋ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ａｂｃｄｅｆｇｈｉｊ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'Ｋ';
		$result = Multibyte::strstr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ｱｲｳｴｵｶｷｸ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strstr($string, $find);
		$expected = 'őřļď!';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Ĥēĺļŏ, Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Ĥē';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strstr($string, $find);
		$expected = 'o, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hell';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strstr($string, $find);
		$expected = 'World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'Wo';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hello, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strstr($string, $find);
		$expected = 'llo, World!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'll';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'He';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strstr($string, $find);
		$expected = 'rld!';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rld';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'Hello, Wo';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ni';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'či';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strstr($string, $find);
		$expected = 'ći';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'mo';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strstr($string, $find);
		$expected = 'žavni';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::strstr($string, $find, true);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strstr($string, $find);
		$expected = '设为首页';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '把百度';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strstr($string, $find);
		$expected = '周永龍';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::strstr($string, $find, true);
		$expected = '一二三';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '二周';
		$result = Multibyte::strstr($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrtolower() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$result = mb_strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = mb_strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEqual($result, $expected);

		$string = 'À';
		$result = mb_strtolower($string);
		$expected = 'à';
		$this->assertEqual($result, $expected);

		$string = 'Á';
		$result = mb_strtolower($string);
		$expected = 'á';
		$this->assertEqual($result, $expected);

		$string = 'Â';
		$result = mb_strtolower($string);
		$expected = 'â';
		$this->assertEqual($result, $expected);

		$string = 'Ã';
		$result = mb_strtolower($string);
		$expected = 'ã';
		$this->assertEqual($result, $expected);

		$string = 'Ä';
		$result = mb_strtolower($string);
		$expected = 'ä';
		$this->assertEqual($result, $expected);

		$string = 'Å';
		$result = mb_strtolower($string);
		$expected = 'å';
		$this->assertEqual($result, $expected);

		$string = 'Æ';
		$result = mb_strtolower($string);
		$expected = 'æ';
		$this->assertEqual($result, $expected);

		$string = 'Ç';
		$result = mb_strtolower($string);
		$expected = 'ç';
		$this->assertEqual($result, $expected);

		$string = 'È';
		$result = mb_strtolower($string);
		$expected = 'è';
		$this->assertEqual($result, $expected);

		$string = 'É';
		$result = mb_strtolower($string);
		$expected = 'é';
		$this->assertEqual($result, $expected);

		$string = 'Ê';
		$result = mb_strtolower($string);
		$expected = 'ê';
		$this->assertEqual($result, $expected);

		$string = 'Ë';
		$result = mb_strtolower($string);
		$expected = 'ë';
		$this->assertEqual($result, $expected);

		$string = 'Ì';
		$result = mb_strtolower($string);
		$expected = 'ì';
		$this->assertEqual($result, $expected);

		$string = 'Í';
		$result = mb_strtolower($string);
		$expected = 'í';
		$this->assertEqual($result, $expected);

		$string = 'Î';
		$result = mb_strtolower($string);
		$expected = 'î';
		$this->assertEqual($result, $expected);

		$string = 'Ï';
		$result = mb_strtolower($string);
		$expected = 'ï';
		$this->assertEqual($result, $expected);

		$string = 'Ð';
		$result = mb_strtolower($string);
		$expected = 'ð';
		$this->assertEqual($result, $expected);

		$string = 'Ñ';
		$result = mb_strtolower($string);
		$expected = 'ñ';
		$this->assertEqual($result, $expected);

		$string = 'Ò';
		$result = mb_strtolower($string);
		$expected = 'ò';
		$this->assertEqual($result, $expected);

		$string = 'Ó';
		$result = mb_strtolower($string);
		$expected = 'ó';
		$this->assertEqual($result, $expected);

		$string = 'Ô';
		$result = mb_strtolower($string);
		$expected = 'ô';
		$this->assertEqual($result, $expected);

		$string = 'Õ';
		$result = mb_strtolower($string);
		$expected = 'õ';
		$this->assertEqual($result, $expected);

		$string = 'Ö';
		$result = mb_strtolower($string);
		$expected = 'ö';
		$this->assertEqual($result, $expected);

		$string = 'Ø';
		$result = mb_strtolower($string);
		$expected = 'ø';
		$this->assertEqual($result, $expected);

		$string = 'Ù';
		$result = mb_strtolower($string);
		$expected = 'ù';
		$this->assertEqual($result, $expected);

		$string = 'Ú';
		$result = mb_strtolower($string);
		$expected = 'ú';
		$this->assertEqual($result, $expected);

		$string = 'Û';
		$result = mb_strtolower($string);
		$expected = 'û';
		$this->assertEqual($result, $expected);

		$string = 'Ü';
		$result = mb_strtolower($string);
		$expected = 'ü';
		$this->assertEqual($result, $expected);

		$string = 'Ý';
		$result = mb_strtolower($string);
		$expected = 'ý';
		$this->assertEqual($result, $expected);

		$string = 'Þ';
		$result = mb_strtolower($string);
		$expected = 'þ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_strtolower($string);
		$expected = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$this->assertEqual($result, $expected);

		$string = 'Ā';
		$result = mb_strtolower($string);
		$expected = 'ā';
		$this->assertEqual($result, $expected);

		$string = 'Ă';
		$result = mb_strtolower($string);
		$expected = 'ă';
		$this->assertEqual($result, $expected);

		$string = 'Ą';
		$result = mb_strtolower($string);
		$expected = 'ą';
		$this->assertEqual($result, $expected);

		$string = 'Ć';
		$result = mb_strtolower($string);
		$expected = 'ć';
		$this->assertEqual($result, $expected);

		$string = 'Ĉ';
		$result = mb_strtolower($string);
		$expected = 'ĉ';
		$this->assertEqual($result, $expected);

		$string = 'Ċ';
		$result = mb_strtolower($string);
		$expected = 'ċ';
		$this->assertEqual($result, $expected);

		$string = 'Č';
		$result = mb_strtolower($string);
		$expected = 'č';
		$this->assertEqual($result, $expected);

		$string = 'Ď';
		$result = mb_strtolower($string);
		$expected = 'ď';
		$this->assertEqual($result, $expected);

		$string = 'Đ';
		$result = mb_strtolower($string);
		$expected = 'đ';
		$this->assertEqual($result, $expected);

		$string = 'Ē';
		$result = mb_strtolower($string);
		$expected = 'ē';
		$this->assertEqual($result, $expected);

		$string = 'Ĕ';
		$result = mb_strtolower($string);
		$expected = 'ĕ';
		$this->assertEqual($result, $expected);

		$string = 'Ė';
		$result = mb_strtolower($string);
		$expected = 'ė';
		$this->assertEqual($result, $expected);

		$string = 'Ę';
		$result = mb_strtolower($string);
		$expected = 'ę';
		$this->assertEqual($result, $expected);

		$string = 'Ě';
		$result = mb_strtolower($string);
		$expected = 'ě';
		$this->assertEqual($result, $expected);

		$string = 'Ĝ';
		$result = mb_strtolower($string);
		$expected = 'ĝ';
		$this->assertEqual($result, $expected);

		$string = 'Ğ';
		$result = mb_strtolower($string);
		$expected = 'ğ';
		$this->assertEqual($result, $expected);

		$string = 'Ġ';
		$result = mb_strtolower($string);
		$expected = 'ġ';
		$this->assertEqual($result, $expected);

		$string = 'Ģ';
		$result = mb_strtolower($string);
		$expected = 'ģ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥ';
		$result = mb_strtolower($string);
		$expected = 'ĥ';
		$this->assertEqual($result, $expected);

		$string = 'Ħ';
		$result = mb_strtolower($string);
		$expected = 'ħ';
		$this->assertEqual($result, $expected);

		$string = 'Ĩ';
		$result = mb_strtolower($string);
		$expected = 'ĩ';
		$this->assertEqual($result, $expected);

		$string = 'Ī';
		$result = mb_strtolower($string);
		$expected = 'ī';
		$this->assertEqual($result, $expected);

		$string = 'Ĭ';
		$result = mb_strtolower($string);
		$expected = 'ĭ';
		$this->assertEqual($result, $expected);

		$string = 'Į';
		$result = mb_strtolower($string);
		$expected = 'į';
		$this->assertEqual($result, $expected);

		$string = 'IJ';
		$result = mb_strtolower($string);
		$expected = 'ij';
		$this->assertEqual($result, $expected);

		$string = 'Ĵ';
		$result = mb_strtolower($string);
		$expected = 'ĵ';
		$this->assertEqual($result, $expected);

		$string = 'Ķ';
		$result = mb_strtolower($string);
		$expected = 'ķ';
		$this->assertEqual($result, $expected);

		$string = 'Ĺ';
		$result = mb_strtolower($string);
		$expected = 'ĺ';
		$this->assertEqual($result, $expected);

		$string = 'Ļ';
		$result = mb_strtolower($string);
		$expected = 'ļ';
		$this->assertEqual($result, $expected);

		$string = 'Ľ';
		$result = mb_strtolower($string);
		$expected = 'ľ';
		$this->assertEqual($result, $expected);

		$string = 'Ŀ';
		$result = mb_strtolower($string);
		$expected = 'ŀ';
		$this->assertEqual($result, $expected);

		$string = 'Ł';
		$result = mb_strtolower($string);
		$expected = 'ł';
		$this->assertEqual($result, $expected);

		$string = 'Ń';
		$result = mb_strtolower($string);
		$expected = 'ń';
		$this->assertEqual($result, $expected);

		$string = 'Ņ';
		$result = mb_strtolower($string);
		$expected = 'ņ';
		$this->assertEqual($result, $expected);

		$string = 'Ň';
		$result = mb_strtolower($string);
		$expected = 'ň';
		$this->assertEqual($result, $expected);

		$string = 'Ŋ';
		$result = mb_strtolower($string);
		$expected = 'ŋ';
		$this->assertEqual($result, $expected);

		$string = 'Ō';
		$result = mb_strtolower($string);
		$expected = 'ō';
		$this->assertEqual($result, $expected);

		$string = 'Ŏ';
		$result = mb_strtolower($string);
		$expected = 'ŏ';
		$this->assertEqual($result, $expected);

		$string = 'Ő';
		$result = mb_strtolower($string);
		$expected = 'ő';
		$this->assertEqual($result, $expected);

		$string = 'Œ';
		$result = mb_strtolower($string);
		$expected = 'œ';
		$this->assertEqual($result, $expected);

		$string = 'Ŕ';
		$result = mb_strtolower($string);
		$expected = 'ŕ';
		$this->assertEqual($result, $expected);

		$string = 'Ŗ';
		$result = mb_strtolower($string);
		$expected = 'ŗ';
		$this->assertEqual($result, $expected);

		$string = 'Ř';
		$result = mb_strtolower($string);
		$expected = 'ř';
		$this->assertEqual($result, $expected);

		$string = 'Ś';
		$result = mb_strtolower($string);
		$expected = 'ś';
		$this->assertEqual($result, $expected);

		$string = 'Ŝ';
		$result = mb_strtolower($string);
		$expected = 'ŝ';
		$this->assertEqual($result, $expected);

		$string = 'Ş';
		$result = mb_strtolower($string);
		$expected = 'ş';
		$this->assertEqual($result, $expected);

		$string = 'Š';
		$result = mb_strtolower($string);
		$expected = 'š';
		$this->assertEqual($result, $expected);

		$string = 'Ţ';
		$result = mb_strtolower($string);
		$expected = 'ţ';
		$this->assertEqual($result, $expected);

		$string = 'Ť';
		$result = mb_strtolower($string);
		$expected = 'ť';
		$this->assertEqual($result, $expected);

		$string = 'Ŧ';
		$result = mb_strtolower($string);
		$expected = 'ŧ';
		$this->assertEqual($result, $expected);

		$string = 'Ũ';
		$result = mb_strtolower($string);
		$expected = 'ũ';
		$this->assertEqual($result, $expected);

		$string = 'Ū';
		$result = mb_strtolower($string);
		$expected = 'ū';
		$this->assertEqual($result, $expected);

		$string = 'Ŭ';
		$result = mb_strtolower($string);
		$expected = 'ŭ';
		$this->assertEqual($result, $expected);

		$string = 'Ů';
		$result = mb_strtolower($string);
		$expected = 'ů';
		$this->assertEqual($result, $expected);

		$string = 'Ű';
		$result = mb_strtolower($string);
		$expected = 'ű';
		$this->assertEqual($result, $expected);

		$string = 'Ų';
		$result = mb_strtolower($string);
		$expected = 'ų';
		$this->assertEqual($result, $expected);

		$string = 'Ŵ';
		$result = mb_strtolower($string);
		$expected = 'ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ŷ';
		$result = mb_strtolower($string);
		$expected = 'ŷ';
		$this->assertEqual($result, $expected);

		$string = 'Ź';
		$result = mb_strtolower($string);
		$expected = 'ź';
		$this->assertEqual($result, $expected);

		$string = 'Ż';
		$result = mb_strtolower($string);
		$expected = 'ż';
		$this->assertEqual($result, $expected);

		$string = 'Ž';
		$result = mb_strtolower($string);
		$expected = 'ž';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = mb_strtolower($string);
		$expected = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįijĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$this->assertEqual($result, $expected);

		$string = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$result = mb_strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEqual($result, $expected);

		$string = 'ĥēĺļŏ, ŵőřļď!';
		$result = mb_strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEqual($result, $expected);

		$string = 'ἈΙ';
		$result = mb_strtolower($string);
		$expected = 'ἀι';
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrtolower() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$result = Multibyte::strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = Multibyte::strtolower($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEqual($result, $expected);

		$string = 'À';
		$result = Multibyte::strtolower($string);
		$expected = 'à';
		$this->assertEqual($result, $expected);

		$string = 'Á';
		$result = Multibyte::strtolower($string);
		$expected = 'á';
		$this->assertEqual($result, $expected);

		$string = 'Â';
		$result = Multibyte::strtolower($string);
		$expected = 'â';
		$this->assertEqual($result, $expected);

		$string = 'Ã';
		$result = Multibyte::strtolower($string);
		$expected = 'ã';
		$this->assertEqual($result, $expected);

		$string = 'Ä';
		$result = Multibyte::strtolower($string);
		$expected = 'ä';
		$this->assertEqual($result, $expected);

		$string = 'Å';
		$result = Multibyte::strtolower($string);
		$expected = 'å';
		$this->assertEqual($result, $expected);

		$string = 'Æ';
		$result = Multibyte::strtolower($string);
		$expected = 'æ';
		$this->assertEqual($result, $expected);

		$string = 'Ç';
		$result = Multibyte::strtolower($string);
		$expected = 'ç';
		$this->assertEqual($result, $expected);

		$string = 'È';
		$result = Multibyte::strtolower($string);
		$expected = 'è';
		$this->assertEqual($result, $expected);

		$string = 'É';
		$result = Multibyte::strtolower($string);
		$expected = 'é';
		$this->assertEqual($result, $expected);

		$string = 'Ê';
		$result = Multibyte::strtolower($string);
		$expected = 'ê';
		$this->assertEqual($result, $expected);

		$string = 'Ë';
		$result = Multibyte::strtolower($string);
		$expected = 'ë';
		$this->assertEqual($result, $expected);

		$string = 'Ì';
		$result = Multibyte::strtolower($string);
		$expected = 'ì';
		$this->assertEqual($result, $expected);

		$string = 'Í';
		$result = Multibyte::strtolower($string);
		$expected = 'í';
		$this->assertEqual($result, $expected);

		$string = 'Î';
		$result = Multibyte::strtolower($string);
		$expected = 'î';
		$this->assertEqual($result, $expected);

		$string = 'Ï';
		$result = Multibyte::strtolower($string);
		$expected = 'ï';
		$this->assertEqual($result, $expected);

		$string = 'Ð';
		$result = Multibyte::strtolower($string);
		$expected = 'ð';
		$this->assertEqual($result, $expected);

		$string = 'Ñ';
		$result = Multibyte::strtolower($string);
		$expected = 'ñ';
		$this->assertEqual($result, $expected);

		$string = 'Ò';
		$result = Multibyte::strtolower($string);
		$expected = 'ò';
		$this->assertEqual($result, $expected);

		$string = 'Ó';
		$result = Multibyte::strtolower($string);
		$expected = 'ó';
		$this->assertEqual($result, $expected);

		$string = 'Ô';
		$result = Multibyte::strtolower($string);
		$expected = 'ô';
		$this->assertEqual($result, $expected);

		$string = 'Õ';
		$result = Multibyte::strtolower($string);
		$expected = 'õ';
		$this->assertEqual($result, $expected);

		$string = 'Ö';
		$result = Multibyte::strtolower($string);
		$expected = 'ö';
		$this->assertEqual($result, $expected);

		$string = 'Ø';
		$result = Multibyte::strtolower($string);
		$expected = 'ø';
		$this->assertEqual($result, $expected);

		$string = 'Ù';
		$result = Multibyte::strtolower($string);
		$expected = 'ù';
		$this->assertEqual($result, $expected);

		$string = 'Ú';
		$result = Multibyte::strtolower($string);
		$expected = 'ú';
		$this->assertEqual($result, $expected);

		$string = 'Û';
		$result = Multibyte::strtolower($string);
		$expected = 'û';
		$this->assertEqual($result, $expected);

		$string = 'Ü';
		$result = Multibyte::strtolower($string);
		$expected = 'ü';
		$this->assertEqual($result, $expected);

		$string = 'Ý';
		$result = Multibyte::strtolower($string);
		$expected = 'ý';
		$this->assertEqual($result, $expected);

		$string = 'Þ';
		$result = Multibyte::strtolower($string);
		$expected = 'þ';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::strtolower($string);
		$expected = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$this->assertEqual($result, $expected);

		$string = 'Ā';
		$result = Multibyte::strtolower($string);
		$expected = 'ā';
		$this->assertEqual($result, $expected);

		$string = 'Ă';
		$result = Multibyte::strtolower($string);
		$expected = 'ă';
		$this->assertEqual($result, $expected);

		$string = 'Ą';
		$result = Multibyte::strtolower($string);
		$expected = 'ą';
		$this->assertEqual($result, $expected);

		$string = 'Ć';
		$result = Multibyte::strtolower($string);
		$expected = 'ć';
		$this->assertEqual($result, $expected);

		$string = 'Ĉ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĉ';
		$this->assertEqual($result, $expected);

		$string = 'Ċ';
		$result = Multibyte::strtolower($string);
		$expected = 'ċ';
		$this->assertEqual($result, $expected);

		$string = 'Č';
		$result = Multibyte::strtolower($string);
		$expected = 'č';
		$this->assertEqual($result, $expected);

		$string = 'Ď';
		$result = Multibyte::strtolower($string);
		$expected = 'ď';
		$this->assertEqual($result, $expected);

		$string = 'Đ';
		$result = Multibyte::strtolower($string);
		$expected = 'đ';
		$this->assertEqual($result, $expected);

		$string = 'Ē';
		$result = Multibyte::strtolower($string);
		$expected = 'ē';
		$this->assertEqual($result, $expected);

		$string = 'Ĕ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĕ';
		$this->assertEqual($result, $expected);

		$string = 'Ė';
		$result = Multibyte::strtolower($string);
		$expected = 'ė';
		$this->assertEqual($result, $expected);

		$string = 'Ę';
		$result = Multibyte::strtolower($string);
		$expected = 'ę';
		$this->assertEqual($result, $expected);

		$string = 'Ě';
		$result = Multibyte::strtolower($string);
		$expected = 'ě';
		$this->assertEqual($result, $expected);

		$string = 'Ĝ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĝ';
		$this->assertEqual($result, $expected);

		$string = 'Ğ';
		$result = Multibyte::strtolower($string);
		$expected = 'ğ';
		$this->assertEqual($result, $expected);

		$string = 'Ġ';
		$result = Multibyte::strtolower($string);
		$expected = 'ġ';
		$this->assertEqual($result, $expected);

		$string = 'Ģ';
		$result = Multibyte::strtolower($string);
		$expected = 'ģ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥ';
		$this->assertEqual($result, $expected);

		$string = 'Ħ';
		$result = Multibyte::strtolower($string);
		$expected = 'ħ';
		$this->assertEqual($result, $expected);

		$string = 'Ĩ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĩ';
		$this->assertEqual($result, $expected);

		$string = 'Ī';
		$result = Multibyte::strtolower($string);
		$expected = 'ī';
		$this->assertEqual($result, $expected);

		$string = 'Ĭ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĭ';
		$this->assertEqual($result, $expected);

		$string = 'Į';
		$result = Multibyte::strtolower($string);
		$expected = 'į';
		$this->assertEqual($result, $expected);

		$string = 'IJ';
		$result = Multibyte::strtolower($string);
		$expected = 'ij';
		$this->assertEqual($result, $expected);

		$string = 'Ĵ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĵ';
		$this->assertEqual($result, $expected);

		$string = 'Ķ';
		$result = Multibyte::strtolower($string);
		$expected = 'ķ';
		$this->assertEqual($result, $expected);

		$string = 'Ĺ';
		$result = Multibyte::strtolower($string);
		$expected = 'ĺ';
		$this->assertEqual($result, $expected);

		$string = 'Ļ';
		$result = Multibyte::strtolower($string);
		$expected = 'ļ';
		$this->assertEqual($result, $expected);

		$string = 'Ľ';
		$result = Multibyte::strtolower($string);
		$expected = 'ľ';
		$this->assertEqual($result, $expected);

		$string = 'Ŀ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŀ';
		$this->assertEqual($result, $expected);

		$string = 'Ł';
		$result = Multibyte::strtolower($string);
		$expected = 'ł';
		$this->assertEqual($result, $expected);

		$string = 'Ń';
		$result = Multibyte::strtolower($string);
		$expected = 'ń';
		$this->assertEqual($result, $expected);

		$string = 'Ņ';
		$result = Multibyte::strtolower($string);
		$expected = 'ņ';
		$this->assertEqual($result, $expected);

		$string = 'Ň';
		$result = Multibyte::strtolower($string);
		$expected = 'ň';
		$this->assertEqual($result, $expected);

		$string = 'Ŋ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŋ';
		$this->assertEqual($result, $expected);

		$string = 'Ō';
		$result = Multibyte::strtolower($string);
		$expected = 'ō';
		$this->assertEqual($result, $expected);

		$string = 'Ŏ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŏ';
		$this->assertEqual($result, $expected);

		$string = 'Ő';
		$result = Multibyte::strtolower($string);
		$expected = 'ő';
		$this->assertEqual($result, $expected);

		$string = 'Œ';
		$result = Multibyte::strtolower($string);
		$expected = 'œ';
		$this->assertEqual($result, $expected);

		$string = 'Ŕ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŕ';
		$this->assertEqual($result, $expected);

		$string = 'Ŗ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŗ';
		$this->assertEqual($result, $expected);

		$string = 'Ř';
		$result = Multibyte::strtolower($string);
		$expected = 'ř';
		$this->assertEqual($result, $expected);

		$string = 'Ś';
		$result = Multibyte::strtolower($string);
		$expected = 'ś';
		$this->assertEqual($result, $expected);

		$string = 'Ŝ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŝ';
		$this->assertEqual($result, $expected);

		$string = 'Ş';
		$result = Multibyte::strtolower($string);
		$expected = 'ş';
		$this->assertEqual($result, $expected);

		$string = 'Š';
		$result = Multibyte::strtolower($string);
		$expected = 'š';
		$this->assertEqual($result, $expected);

		$string = 'Ţ';
		$result = Multibyte::strtolower($string);
		$expected = 'ţ';
		$this->assertEqual($result, $expected);

		$string = 'Ť';
		$result = Multibyte::strtolower($string);
		$expected = 'ť';
		$this->assertEqual($result, $expected);

		$string = 'Ŧ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŧ';
		$this->assertEqual($result, $expected);

		$string = 'Ũ';
		$result = Multibyte::strtolower($string);
		$expected = 'ũ';
		$this->assertEqual($result, $expected);

		$string = 'Ū';
		$result = Multibyte::strtolower($string);
		$expected = 'ū';
		$this->assertEqual($result, $expected);

		$string = 'Ŭ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŭ';
		$this->assertEqual($result, $expected);

		$string = 'Ů';
		$result = Multibyte::strtolower($string);
		$expected = 'ů';
		$this->assertEqual($result, $expected);

		$string = 'Ű';
		$result = Multibyte::strtolower($string);
		$expected = 'ű';
		$this->assertEqual($result, $expected);

		$string = 'Ų';
		$result = Multibyte::strtolower($string);
		$expected = 'ų';
		$this->assertEqual($result, $expected);

		$string = 'Ŵ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŵ';
		$this->assertEqual($result, $expected);

		$string = 'Ŷ';
		$result = Multibyte::strtolower($string);
		$expected = 'ŷ';
		$this->assertEqual($result, $expected);

		$string = 'Ź';
		$result = Multibyte::strtolower($string);
		$expected = 'ź';
		$this->assertEqual($result, $expected);

		$string = 'Ż';
		$result = Multibyte::strtolower($string);
		$expected = 'ż';
		$this->assertEqual($result, $expected);

		$string = 'Ž';
		$result = Multibyte::strtolower($string);
		$expected = 'ž';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$result = Multibyte::strtolower($string);
		$expected = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįijĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$this->assertEqual($result, $expected);

		$string = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEqual($result, $expected);

		$string = 'ĥēĺļŏ, ŵőřļď!';
		$result = Multibyte::strtolower($string);
		$expected = 'ĥēĺļŏ, ŵőřļď!';
		$this->assertEqual($result, $expected);

		$string = 'ἈΙ';
		$result = Multibyte::strtolower($string);
		$expected = 'ἀι';
		$this->assertEqual($result, $expected);
	}

	function testUsingMbStrtoupper() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = mb_strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEqual($result, $expected);

		$string = 'à';
		$result = mb_strtoupper($string);
		$expected = 'À';
		$this->assertEqual($result, $expected);

		$string = 'á';
		$result = mb_strtoupper($string);
		$expected = 'Á';
		$this->assertEqual($result, $expected);

		$string = 'â';
		$result = mb_strtoupper($string);
		$expected = 'Â';
		$this->assertEqual($result, $expected);

		$string = 'ã';
		$result = mb_strtoupper($string);
		$expected = 'Ã';
		$this->assertEqual($result, $expected);

		$string = 'ä';
		$result = mb_strtoupper($string);
		$expected = 'Ä';
		$this->assertEqual($result, $expected);

		$string = 'å';
		$result = mb_strtoupper($string);
		$expected = 'Å';
		$this->assertEqual($result, $expected);

		$string = 'æ';
		$result = mb_strtoupper($string);
		$expected = 'Æ';
		$this->assertEqual($result, $expected);

		$string = 'ç';
		$result = mb_strtoupper($string);
		$expected = 'Ç';
		$this->assertEqual($result, $expected);

		$string = 'è';
		$result = mb_strtoupper($string);
		$expected = 'È';
		$this->assertEqual($result, $expected);

		$string = 'é';
		$result = mb_strtoupper($string);
		$expected = 'É';
		$this->assertEqual($result, $expected);

		$string = 'ê';
		$result = mb_strtoupper($string);
		$expected = 'Ê';
		$this->assertEqual($result, $expected);

		$string = 'ë';
		$result = mb_strtoupper($string);
		$expected = 'Ë';
		$this->assertEqual($result, $expected);

		$string = 'ì';
		$result = mb_strtoupper($string);
		$expected = 'Ì';
		$this->assertEqual($result, $expected);

		$string = 'í';
		$result = mb_strtoupper($string);
		$expected = 'Í';
		$this->assertEqual($result, $expected);

		$string = 'î';
		$result = mb_strtoupper($string);
		$expected = 'Î';
		$this->assertEqual($result, $expected);

		$string = 'ï';
		$result = mb_strtoupper($string);
		$expected = 'Ï';
		$this->assertEqual($result, $expected);

		$string = 'ð';
		$result = mb_strtoupper($string);
		$expected = 'Ð';
		$this->assertEqual($result, $expected);

		$string = 'ñ';
		$result = mb_strtoupper($string);
		$expected = 'Ñ';
		$this->assertEqual($result, $expected);

		$string = 'ò';
		$result = mb_strtoupper($string);
		$expected = 'Ò';
		$this->assertEqual($result, $expected);

		$string = 'ó';
		$result = mb_strtoupper($string);
		$expected = 'Ó';
		$this->assertEqual($result, $expected);

		$string = 'ô';
		$result = mb_strtoupper($string);
		$expected = 'Ô';
		$this->assertEqual($result, $expected);

		$string = 'õ';
		$result = mb_strtoupper($string);
		$expected = 'Õ';
		$this->assertEqual($result, $expected);

		$string = 'ö';
		$result = mb_strtoupper($string);
		$expected = 'Ö';
		$this->assertEqual($result, $expected);

		$string = 'ø';
		$result = mb_strtoupper($string);
		$expected = 'Ø';
		$this->assertEqual($result, $expected);

		$string = 'ù';
		$result = mb_strtoupper($string);
		$expected = 'Ù';
		$this->assertEqual($result, $expected);

		$string = 'ú';
		$result = mb_strtoupper($string);
		$expected = 'Ú';
		$this->assertEqual($result, $expected);

		$string = 'û';
		$result = mb_strtoupper($string);
		$expected = 'Û';
		$this->assertEqual($result, $expected);

		$string = 'ü';
		$result = mb_strtoupper($string);
		$expected = 'Ü';
		$this->assertEqual($result, $expected);

		$string = 'ý';
		$result = mb_strtoupper($string);
		$expected = 'Ý';
		$this->assertEqual($result, $expected);

		$string = 'þ';
		$result = mb_strtoupper($string);
		$expected = 'Þ';
		$this->assertEqual($result, $expected);

		$string = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$result = mb_strtoupper($string);
		$expected = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ā';
		$result = mb_strtoupper($string);
		$expected = 'Ā';
		$this->assertEqual($result, $expected);

		$string = 'ă';
		$result = mb_strtoupper($string);
		$expected = 'Ă';
		$this->assertEqual($result, $expected);

		$string = 'ą';
		$result = mb_strtoupper($string);
		$expected = 'Ą';
		$this->assertEqual($result, $expected);

		$string = 'ć';
		$result = mb_strtoupper($string);
		$expected = 'Ć';
		$this->assertEqual($result, $expected);

		$string = 'ĉ';
		$result = mb_strtoupper($string);
		$expected = 'Ĉ';
		$this->assertEqual($result, $expected);

		$string = 'ċ';
		$result = mb_strtoupper($string);
		$expected = 'Ċ';
		$this->assertEqual($result, $expected);

		$string = 'č';
		$result = mb_strtoupper($string);
		$expected = 'Č';
		$this->assertEqual($result, $expected);

		$string = 'ď';
		$result = mb_strtoupper($string);
		$expected = 'Ď';
		$this->assertEqual($result, $expected);

		$string = 'đ';
		$result = mb_strtoupper($string);
		$expected = 'Đ';
		$this->assertEqual($result, $expected);

		$string = 'ē';
		$result = mb_strtoupper($string);
		$expected = 'Ē';
		$this->assertEqual($result, $expected);

		$string = 'ĕ';
		$result = mb_strtoupper($string);
		$expected = 'Ĕ';
		$this->assertEqual($result, $expected);

		$string = 'ė';
		$result = mb_strtoupper($string);
		$expected = 'Ė';
		$this->assertEqual($result, $expected);

		$string = 'ę';
		$result = mb_strtoupper($string);
		$expected = 'Ę';
		$this->assertEqual($result, $expected);

		$string = 'ě';
		$result = mb_strtoupper($string);
		$expected = 'Ě';
		$this->assertEqual($result, $expected);

		$string = 'ĝ';
		$result = mb_strtoupper($string);
		$expected = 'Ĝ';
		$this->assertEqual($result, $expected);

		$string = 'ğ';
		$result = mb_strtoupper($string);
		$expected = 'Ğ';
		$this->assertEqual($result, $expected);

		$string = 'ġ';
		$result = mb_strtoupper($string);
		$expected = 'Ġ';
		$this->assertEqual($result, $expected);

		$string = 'ģ';
		$result = mb_strtoupper($string);
		$expected = 'Ģ';
		$this->assertEqual($result, $expected);

		$string = 'ĥ';
		$result = mb_strtoupper($string);
		$expected = 'Ĥ';
		$this->assertEqual($result, $expected);

		$string = 'ħ';
		$result = mb_strtoupper($string);
		$expected = 'Ħ';
		$this->assertEqual($result, $expected);

		$string = 'ĩ';
		$result = mb_strtoupper($string);
		$expected = 'Ĩ';
		$this->assertEqual($result, $expected);

		$string = 'ī';
		$result = mb_strtoupper($string);
		$expected = 'Ī';
		$this->assertEqual($result, $expected);

		$string = 'ĭ';
		$result = mb_strtoupper($string);
		$expected = 'Ĭ';
		$this->assertEqual($result, $expected);

		$string = 'į';
		$result = mb_strtoupper($string);
		$expected = 'Į';
		$this->assertEqual($result, $expected);

		$string = 'ij';
		$result = mb_strtoupper($string);
		$expected = 'IJ';
		$this->assertEqual($result, $expected);

		$string = 'ĵ';
		$result = mb_strtoupper($string);
		$expected = 'Ĵ';
		$this->assertEqual($result, $expected);

		$string = 'ķ';
		$result = mb_strtoupper($string);
		$expected = 'Ķ';
		$this->assertEqual($result, $expected);

		$string = 'ĺ';
		$result = mb_strtoupper($string);
		$expected = 'Ĺ';
		$this->assertEqual($result, $expected);

		$string = 'ļ';
		$result = mb_strtoupper($string);
		$expected = 'Ļ';
		$this->assertEqual($result, $expected);

		$string = 'ľ';
		$result = mb_strtoupper($string);
		$expected = 'Ľ';
		$this->assertEqual($result, $expected);

		$string = 'ŀ';
		$result = mb_strtoupper($string);
		$expected = 'Ŀ';
		$this->assertEqual($result, $expected);

		$string = 'ł';
		$result = mb_strtoupper($string);
		$expected = 'Ł';
		$this->assertEqual($result, $expected);

		$string = 'ń';
		$result = mb_strtoupper($string);
		$expected = 'Ń';
		$this->assertEqual($result, $expected);

		$string = 'ņ';
		$result = mb_strtoupper($string);
		$expected = 'Ņ';
		$this->assertEqual($result, $expected);

		$string = 'ň';
		$result = mb_strtoupper($string);
		$expected = 'Ň';
		$this->assertEqual($result, $expected);

		$string = 'ŋ';
		$result = mb_strtoupper($string);
		$expected = 'Ŋ';
		$this->assertEqual($result, $expected);

		$string = 'ō';
		$result = mb_strtoupper($string);
		$expected = 'Ō';
		$this->assertEqual($result, $expected);

		$string = 'ŏ';
		$result = mb_strtoupper($string);
		$expected = 'Ŏ';
		$this->assertEqual($result, $expected);

		$string = 'ő';
		$result = mb_strtoupper($string);
		$expected = 'Ő';
		$this->assertEqual($result, $expected);

		$string = 'œ';
		$result = mb_strtoupper($string);
		$expected = 'Œ';
		$this->assertEqual($result, $expected);

		$string = 'ŕ';
		$result = mb_strtoupper($string);
		$expected = 'Ŕ';
		$this->assertEqual($result, $expected);

		$string = 'ŗ';
		$result = mb_strtoupper($string);
		$expected = 'Ŗ';
		$this->assertEqual($result, $expected);

		$string = 'ř';
		$result = mb_strtoupper($string);
		$expected = 'Ř';
		$this->assertEqual($result, $expected);

		$string = 'ś';
		$result = mb_strtoupper($string);
		$expected = 'Ś';
		$this->assertEqual($result, $expected);

		$string = 'ŝ';
		$result = mb_strtoupper($string);
		$expected = 'Ŝ';
		$this->assertEqual($result, $expected);

		$string = 'ş';
		$result = mb_strtoupper($string);
		$expected = 'Ş';
		$this->assertEqual($result, $expected);

		$string = 'š';
		$result = mb_strtoupper($string);
		$expected = 'Š';
		$this->assertEqual($result, $expected);

		$string = 'ţ';
		$result = mb_strtoupper($string);
		$expected = 'Ţ';
		$this->assertEqual($result, $expected);

		$string = 'ť';
		$result = mb_strtoupper($string);
		$expected = 'Ť';
		$this->assertEqual($result, $expected);

		$string = 'ŧ';
		$result = mb_strtoupper($string);
		$expected = 'Ŧ';
		$this->assertEqual($result, $expected);

		$string = 'ũ';
		$result = mb_strtoupper($string);
		$expected = 'Ũ';
		$this->assertEqual($result, $expected);

		$string = 'ū';
		$result = mb_strtoupper($string);
		$expected = 'Ū';
		$this->assertEqual($result, $expected);

		$string = 'ŭ';
		$result = mb_strtoupper($string);
		$expected = 'Ŭ';
		$this->assertEqual($result, $expected);

		$string = 'ů';
		$result = mb_strtoupper($string);
		$expected = 'Ů';
		$this->assertEqual($result, $expected);

		$string = 'ű';
		$result = mb_strtoupper($string);
		$expected = 'Ű';
		$this->assertEqual($result, $expected);

		$string = 'ų';
		$result = mb_strtoupper($string);
		$expected = 'Ų';
		$this->assertEqual($result, $expected);

		$string = 'ŵ';
		$result = mb_strtoupper($string);
		$expected = 'Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'ŷ';
		$result = mb_strtoupper($string);
		$expected = 'Ŷ';
		$this->assertEqual($result, $expected);

		$string = 'ź';
		$result = mb_strtoupper($string);
		$expected = 'Ź';
		$this->assertEqual($result, $expected);

		$string = 'ż';
		$result = mb_strtoupper($string);
		$expected = 'Ż';
		$this->assertEqual($result, $expected);

		$string = 'ž';
		$result = mb_strtoupper($string);
		$expected = 'Ž';
		$this->assertEqual($result, $expected);

		$string = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįijĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$result = mb_strtoupper($string);
		$expected = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_strtoupper($string);
		$expected = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$this->assertEqual($result, $expected);

		$string = 'ἀι';
		$result = mb_strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEqual($result, $expected);
	}

	function testMultibyteStrtoupper() {
		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$result = Multibyte::strtoupper($string);
		$expected = '!"#$%&\'()*+,-./0123456789:;<=>?@';
		$this->assertEqual($result, $expected);

		$string = 'à';
		$result = Multibyte::strtoupper($string);
		$expected = 'À';
		$this->assertEqual($result, $expected);

		$string = 'á';
		$result = Multibyte::strtoupper($string);
		$expected = 'Á';
		$this->assertEqual($result, $expected);

		$string = 'â';
		$result = Multibyte::strtoupper($string);
		$expected = 'Â';
		$this->assertEqual($result, $expected);

		$string = 'ã';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ã';
		$this->assertEqual($result, $expected);

		$string = 'ä';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ä';
		$this->assertEqual($result, $expected);

		$string = 'å';
		$result = Multibyte::strtoupper($string);
		$expected = 'Å';
		$this->assertEqual($result, $expected);

		$string = 'æ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Æ';
		$this->assertEqual($result, $expected);

		$string = 'ç';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ç';
		$this->assertEqual($result, $expected);

		$string = 'è';
		$result = Multibyte::strtoupper($string);
		$expected = 'È';
		$this->assertEqual($result, $expected);

		$string = 'é';
		$result = Multibyte::strtoupper($string);
		$expected = 'É';
		$this->assertEqual($result, $expected);

		$string = 'ê';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ê';
		$this->assertEqual($result, $expected);

		$string = 'ë';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ë';
		$this->assertEqual($result, $expected);

		$string = 'ì';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ì';
		$this->assertEqual($result, $expected);

		$string = 'í';
		$result = Multibyte::strtoupper($string);
		$expected = 'Í';
		$this->assertEqual($result, $expected);

		$string = 'î';
		$result = Multibyte::strtoupper($string);
		$expected = 'Î';
		$this->assertEqual($result, $expected);

		$string = 'ï';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ï';
		$this->assertEqual($result, $expected);

		$string = 'ð';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ð';
		$this->assertEqual($result, $expected);

		$string = 'ñ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ñ';
		$this->assertEqual($result, $expected);

		$string = 'ò';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ò';
		$this->assertEqual($result, $expected);

		$string = 'ó';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ó';
		$this->assertEqual($result, $expected);

		$string = 'ô';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ô';
		$this->assertEqual($result, $expected);

		$string = 'õ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Õ';
		$this->assertEqual($result, $expected);

		$string = 'ö';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ö';
		$this->assertEqual($result, $expected);

		$string = 'ø';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ø';
		$this->assertEqual($result, $expected);

		$string = 'ù';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ù';
		$this->assertEqual($result, $expected);

		$string = 'ú';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ú';
		$this->assertEqual($result, $expected);

		$string = 'û';
		$result = Multibyte::strtoupper($string);
		$expected = 'Û';
		$this->assertEqual($result, $expected);

		$string = 'ü';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ü';
		$this->assertEqual($result, $expected);

		$string = 'ý';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ý';
		$this->assertEqual($result, $expected);

		$string = 'þ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Þ';
		$this->assertEqual($result, $expected);

		$string = 'àáâãäåæçèéêëìíîïðñòóôõöøùúûüýþ';
		$result = Multibyte::strtoupper($string);
		$expected = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$this->assertEqual($result, $expected);

		$string = 'ā';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ā';
		$this->assertEqual($result, $expected);

		$string = 'ă';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ă';
		$this->assertEqual($result, $expected);

		$string = 'ą';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ą';
		$this->assertEqual($result, $expected);

		$string = 'ć';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ć';
		$this->assertEqual($result, $expected);

		$string = 'ĉ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĉ';
		$this->assertEqual($result, $expected);

		$string = 'ċ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ċ';
		$this->assertEqual($result, $expected);

		$string = 'č';
		$result = Multibyte::strtoupper($string);
		$expected = 'Č';
		$this->assertEqual($result, $expected);

		$string = 'ď';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ď';
		$this->assertEqual($result, $expected);

		$string = 'đ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Đ';
		$this->assertEqual($result, $expected);

		$string = 'ē';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ē';
		$this->assertEqual($result, $expected);

		$string = 'ĕ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĕ';
		$this->assertEqual($result, $expected);

		$string = 'ė';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ė';
		$this->assertEqual($result, $expected);

		$string = 'ę';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ę';
		$this->assertEqual($result, $expected);

		$string = 'ě';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ě';
		$this->assertEqual($result, $expected);

		$string = 'ĝ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĝ';
		$this->assertEqual($result, $expected);

		$string = 'ğ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ğ';
		$this->assertEqual($result, $expected);

		$string = 'ġ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ġ';
		$this->assertEqual($result, $expected);

		$string = 'ģ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ģ';
		$this->assertEqual($result, $expected);

		$string = 'ĥ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĥ';
		$this->assertEqual($result, $expected);

		$string = 'ħ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ħ';
		$this->assertEqual($result, $expected);

		$string = 'ĩ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĩ';
		$this->assertEqual($result, $expected);

		$string = 'ī';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ī';
		$this->assertEqual($result, $expected);

		$string = 'ĭ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĭ';
		$this->assertEqual($result, $expected);

		$string = 'į';
		$result = Multibyte::strtoupper($string);
		$expected = 'Į';
		$this->assertEqual($result, $expected);

		$string = 'ij';
		$result = Multibyte::strtoupper($string);
		$expected = 'IJ';
		$this->assertEqual($result, $expected);

		$string = 'ĵ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĵ';
		$this->assertEqual($result, $expected);

		$string = 'ķ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ķ';
		$this->assertEqual($result, $expected);

		$string = 'ĺ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ĺ';
		$this->assertEqual($result, $expected);

		$string = 'ļ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ļ';
		$this->assertEqual($result, $expected);

		$string = 'ľ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ľ';
		$this->assertEqual($result, $expected);

		$string = 'ŀ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŀ';
		$this->assertEqual($result, $expected);

		$string = 'ł';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ł';
		$this->assertEqual($result, $expected);

		$string = 'ń';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ń';
		$this->assertEqual($result, $expected);

		$string = 'ņ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ņ';
		$this->assertEqual($result, $expected);

		$string = 'ň';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ň';
		$this->assertEqual($result, $expected);

		$string = 'ŋ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŋ';
		$this->assertEqual($result, $expected);

		$string = 'ō';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ō';
		$this->assertEqual($result, $expected);

		$string = 'ŏ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŏ';
		$this->assertEqual($result, $expected);

		$string = 'ő';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ő';
		$this->assertEqual($result, $expected);

		$string = 'œ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Œ';
		$this->assertEqual($result, $expected);

		$string = 'ŕ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŕ';
		$this->assertEqual($result, $expected);

		$string = 'ŗ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŗ';
		$this->assertEqual($result, $expected);

		$string = 'ř';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ř';
		$this->assertEqual($result, $expected);

		$string = 'ś';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ś';
		$this->assertEqual($result, $expected);

		$string = 'ŝ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŝ';
		$this->assertEqual($result, $expected);

		$string = 'ş';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ş';
		$this->assertEqual($result, $expected);

		$string = 'š';
		$result = Multibyte::strtoupper($string);
		$expected = 'Š';
		$this->assertEqual($result, $expected);

		$string = 'ţ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ţ';
		$this->assertEqual($result, $expected);

		$string = 'ť';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ť';
		$this->assertEqual($result, $expected);

		$string = 'ŧ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŧ';
		$this->assertEqual($result, $expected);

		$string = 'ũ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ũ';
		$this->assertEqual($result, $expected);

		$string = 'ū';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ū';
		$this->assertEqual($result, $expected);

		$string = 'ŭ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŭ';
		$this->assertEqual($result, $expected);

		$string = 'ů';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ů';
		$this->assertEqual($result, $expected);

		$string = 'ű';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ű';
		$this->assertEqual($result, $expected);

		$string = 'ų';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ų';
		$this->assertEqual($result, $expected);

		$string = 'ŵ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŵ';
		$this->assertEqual($result, $expected);

		$string = 'ŷ';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ŷ';
		$this->assertEqual($result, $expected);

		$string = 'ź';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ź';
		$this->assertEqual($result, $expected);

		$string = 'ż';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ż';
		$this->assertEqual($result, $expected);

		$string = 'ž';
		$result = Multibyte::strtoupper($string);
		$expected = 'Ž';
		$this->assertEqual($result, $expected);

		$string = 'āăąćĉċčďđēĕėęěĝğġģĥħĩīĭįijĵķĺļľŀłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźżž';
		$result = Multibyte::strtoupper($string);
		$expected = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::strtoupper($string);
		$expected = 'ĤĒĹĻŎ, ŴŐŘĻĎ!';
		$this->assertEqual($result, $expected);

		$string = 'ἀι';
		$result = mb_strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEqual($result, $expected);

		$string = 'ἀι';
		$result = Multibyte::strtoupper($string);
		$expected = 'ἈΙ';
		$this->assertEqual($result, $expected);
	}

	function testUsingMbSubstrCount() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSFTUVWXYZ0F12345F6789';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÅÊËÌÍÎÏÐÑÒÓÔÅÕÖØÅÙÚÛÅÜÝÞ';
		$find = 'Å';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÙÚÂÃÄÅÆÇÈÙÚÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞÙÚ';
		$find = 'ÙÚ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊÅËÌÍÎÏÐÑÒÓÔÕÅÖØÅÙÚÅÛÜÅÝÞÅ';
		$find = 'Å';
		$result = mb_substr_count($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'ĊĀĂĄĆĈĊČĎĐĒĔĖĊĘĚĜĞĠĢĤĦĨĪĬĮĊIJĴĶĹĻĽĿŁŃŅŇŊŌĊŎŐŒŔŖŘŚŜŞŠŢĊŤŦŨŪŬŮŰĊŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_substr_count($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĊĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅĊŇŊŌŎŐŒŔŖĊŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./012F34567F89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghiFjklmnopqFrstuvwFxyz{|}~';
		$find = 'F';
		$result = mb_substr_count($string, $find);
		$expected = 6;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥µ¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁµÂõÄÅÆǵÈ';
		$find = 'µ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôÕÖõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉÕÖĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝÕÖĞğĠġĢģĤĥĦÕÖħĨĩĪīĬ';
		$find = 'ÕÖ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōĵĶķĸĹŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšĵĶķĸĹŢţŤťŦŧŨũŪūŬŭŮůŰűŲųĵĶķĸĹŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'ĵĶķĸĹ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƸƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJƸNjnjǍǎǏǐǑǒǓƸǔǕǖǗǘǙǚƸǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƹƠơƢƣƤƥƦƧƨƩƹƪƫƬƭƮƯưƱƲƳƴƹƵƶƷƸƹƺƻƼƽƾƿǀǁǂƹǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞʀɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʀʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʀʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʀʻʼ';
		$find = 'ʀ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЇЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = mb_substr_count($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСРТУФХЦЧШЩЪЫЬРЭЮЯабРвгдежзийклРмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСрТУФХЦЧШЩЪЫрЬЭЮЯабвгдежзийклмнопррстуфхцчшщъыь';
		$find = 'р';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'فنقكلنمنهونىينًٌٍَُ';
		$find = 'ن';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✿✴✵✶✷✸✿✹✺✻✼✽✾✿❀❁❂❃❄❅❆✿❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺐⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺐⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⺐⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽤⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽤⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눺눻눼눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕눺눻눼뉖뉗뉘뉙뉚뉛뉜뉝눺눻눼뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눺눻눼';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ﺞﺟﺠﺡﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺞﺟﺠﺡﺆﺇﺞﺟﺠﺡﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞﺟﺠﺡ';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﻞﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻞﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻞﻸﻹﻺﻞﻻﻼ';
		$find = 'ﻞ';
		$result = mb_substr_count($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｋｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｋｙｚ';
		$find = 'ｋ';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｋｌｍｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｋｌｍｗｘｙｚ';
		$find = 'ｋｌｍ';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｐｐｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐｅ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = mb_substr_count($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rl';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ničiničiini';
		$find = 'n';
		$result = mb_substr_count($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'moćimoćimoćmćioći';
		$find = 'ći';
		$result = mb_substr_count($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = mb_substr_count($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = mb_substr_count($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testMultibyteSubstrCount() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ABCDEFGHIJKLMNOPQFRSFTUVWXYZ0F12345F6789';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÅÊËÌÍÎÏÐÑÒÓÔÅÕÖØÅÙÚÛÅÜÝÞ';
		$find = 'Å';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÙÚÂÃÄÅÆÇÈÙÚÉÊËÌÍÎÏÐÑÒÓÔÕÖØÅÙÚÛÜÝÞÙÚ';
		$find = 'ÙÚ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊÅËÌÍÎÏÐÑÒÓÔÕÅÖØÅÙÚÅÛÜÅÝÞÅ';
		$find = 'Å';
		$result = Multibyte::substrCount($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'ĊĀĂĄĆĈĊČĎĐĒĔĖĊĘĚĜĞĠĢĤĦĨĪĬĮĊIJĴĶĹĻĽĿŁŃŅŇŊŌĊŎŐŒŔŖŘŚŜŞŠŢĊŤŦŨŪŬŮŰĊŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 7;
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĊĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁĊŃŅĊŇŊŌŎŐŒŔŖĊŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./012F34567F89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghiFjklmnopqFrstuvwFxyz{|}~';
		$find = 'F';
		$result = Multibyte::substrCount($string, $find);
		$expected = 6;
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥µ¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁµÂõÄÅÆǵÈ';
		$find = 'µ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôÕÖõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉÕÖĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝÕÖĞğĠġĢģĤĥĦÕÖħĨĩĪīĬ';
		$find = 'ÕÖ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōĵĶķĸĹŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšĵĶķĸĹŢţŤťŦŧŨũŪūŬŭŮůŰűŲųĵĶķĸĹŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$find = 'ĵĶķĸĹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƸƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJƸNjnjǍǎǏǐǑǒǓƸǔǕǖǗǘǙǚƸǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'Ƹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƹƠơƢƣƤƥƦƧƨƩƹƪƫƬƭƮƯưƱƲƳƴƹƵƶƷƸƹƺƻƼƽƾƿǀǁǂƹǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$find = 'ƹ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞʀɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʀʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʀʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʀʻʼ';
		$find = 'ʀ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЇЎЏАБВГДЕЖЗИЙКЛ';
		$find = 'Ї';
		$result = Multibyte::substrCount($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСРТУФХЦЧШЩЪЫЬРЭЮЯабРвгдежзийклРмнопрстуфхцчшщъыь';
		$find = 'Р';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСрТУФХЦЧШЩЪЫрЬЭЮЯабвгдежзийклмнопррстуфхцчшщъыь';
		$find = 'р';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'فنقكلنمنهونىينًٌٍَُ';
		$find = 'ن';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✿✴✵✶✷✸✿✹✺✻✼✽✾✿❀❁❂❃❄❅❆✿❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$find = '✿';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺐⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺐⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⺐⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$find = '⺐';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽤⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽤⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$find = '⽤';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눺눻눼눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕눺눻눼뉖뉗뉘뉙뉚뉛뉜뉝눺눻눼뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$find = '눺눻눼';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ﺞﺟﺠﺡﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺞﺟﺠﺡﺆﺇﺞﺟﺠﺡﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$find = 'ﺞﺟﺠﺡ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﻞﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻞﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻞﻸﻹﻺﻞﻻﻼ';
		$find = 'ﻞ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 5;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｋｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｋｙｚ';
		$find = 'ｋ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｋｌｍｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｋｌｍｗｘｙｚ';
		$find = 'ｋｌｍ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｐｐｅｆｇｈｉｊｋｌｍｎｏｐｐｑｒｓｔｕｖｗｘｙｚ';
		$find = 'ｐｐｅ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$find = 'ｱ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$find = 'ﾊ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ő';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'ĺļ';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'o';
		$result = Multibyte::substrCount($string, $find);
		$expected = 2;
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$find = 'rl';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$find = 'n';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'ničiničiini';
		$find = 'n';
		$result = Multibyte::substrCount($string, $find);
		$expected = 3;
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$find = 'ć';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'moćimoćimoćmćioći';
		$find = 'ći';
		$result = Multibyte::substrCount($string, $find);
		$expected = 4;
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$find = 'ž';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$find = '设';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$find = '周';
		$result = Multibyte::substrCount($string, $find);
		$expected = 1;
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$find = 'H';
		$result = Multibyte::substrCount($string, $find);
		$expected = false;
		$this->assertEqual($result, $expected);
	}

	function testUsingMbSubstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = mb_substr($string, 4, 7);
		$expected = 'EFGHIJK';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ÄÅÆÇÈÉÊ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ĈĊČĎĐĒĔ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = mb_substr($string, 4, 7);
		$expected = '%&\'()*+';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = mb_substr($string, 4);
		$expected = '¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ÍÎÏÐÑÒÓ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = mb_substr($string, 4, 7);
		$expected = 'ıIJijĴĵĶķ';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = mb_substr($string, 25);
		$expected = 'ƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = mb_substr($string, 3);
		$expected = 'ɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = mb_substr($string, 3);
		$expected = 'ЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = mb_substr($string, 3, 16);
		$expected = 'ПРСТУФХЦЧШЩЪЫЬЭЮ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = mb_substr($string, 3, 6);
		$expected = 'لمنهوى';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = mb_substr($string, 6, 14);
		$expected = '✶✷✸✹✺✻✼✽✾✿❀❁❂❃';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = mb_substr($string, 8, 13);
		$expected = '⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = mb_substr($string, 12, 24);
		$expected = '⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = mb_substr($string, 12, 24);
		$expected = '눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = mb_substr($string, 12);
		$expected = 'ﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = mb_substr($string, 24, 12);
		$expected = 'ﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = mb_substr($string, 11, 2);
		$expected = 'ｌｍ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = mb_substr($string, 7, 11);
		$expected = 'ｨｩｪｫｬｭｮｯｰｱｲ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = mb_substr($string, 13, 13);
		$expected = 'ﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = mb_substr($string, 3, 4);
		$expected = 'ļŏ, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$result = mb_substr($string, 3, 4);
		$expected = 'lo, ';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$result = mb_substr($string, 3);
		$expected = 'i';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$result = mb_substr($string, 1);
		$expected = 'oći';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$result = mb_substr($string, 0, 2);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$result = mb_substr($string, 3, 3);
		$expected = '设为首';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = mb_substr($string, 0, 1);
		$expected = '一';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = mb_substr($string, 6);
		$expected = false;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = mb_substr($string, 0);
		$expected = '一二三周永龍';
		$this->assertEqual($result, $expected);
	}

	function testMultibyteSubstr() {
		$string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'EFGHIJK';
		$this->assertEqual($result, $expected);

		$string = 'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ÄÅÆÇÈÉÊ';
		$this->assertEqual($result, $expected);

		$string = 'ĀĂĄĆĈĊČĎĐĒĔĖĘĚĜĞĠĢĤĦĨĪĬĮIJĴĶĹĻĽĿŁŃŅŇŊŌŎŐŒŔŖŘŚŜŞŠŢŤŦŨŪŬŮŰŲŴŶŹŻŽ';
		$find = 'Ċ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ĈĊČĎĐĒĔ';
		$this->assertEqual($result, $expected);

		$string = '!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~';
		$result = Multibyte::substr($string, 4, 7);
		$expected = '%&\'()*+';
		$this->assertEqual($result, $expected);

		$string = '¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$result = Multibyte::substr($string, 4);
		$expected = '¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈ';
		$this->assertEqual($result, $expected);

		$string = 'ÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ÍÎÏÐÑÒÓ';
		$this->assertEqual($result, $expected);

		$string = 'ĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐ';
		$result = Multibyte::substr($string, 4, 7);
		$expected = 'ıIJijĴĵĶķ';
		$this->assertEqual($result, $expected);

		$string = 'ƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$result = Multibyte::substr($string, 25);
		$expected = 'ƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdzǴ';
		$this->assertEqual($result, $expected);

		$string = 'əɚɛɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$result = Multibyte::substr($string, 3);
		$expected = 'ɜɝɞɟɠɡɢɣɤɥɦɧɨɩɪɫɬɭɮɯɰɱɲɳɴɵɶɷɸɹɺɻɼɽɾɿʀʁʂʃʄʅʆʇʈʉʊʋʌʍʎʏʐʑʒʓʔʕʖʗʘʙʚʛʜʝʞʟʠʡʢʣʤʥʦʧʨʩʪʫʬʭʮʯʰʱʲʳʴʵʶʷʸʹʺʻʼ';
		$this->assertEqual($result, $expected);

		$string = 'ЀЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$result = Multibyte::substr($string, 3);
		$expected = 'ЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛ';
		$this->assertEqual($result, $expected);

		$string = 'МНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыь';
		$result = Multibyte::substr($string, 3, 16);
		$expected = 'ПРСТУФХЦЧШЩЪЫЬЭЮ';
		$this->assertEqual($result, $expected);

		$string = 'فقكلمنهوىيًٌٍَُ';
		$result = Multibyte::substr($string, 3, 6);
		$expected = 'لمنهوى';
		$this->assertEqual($result, $expected);

		$string = '✰✱✲✳✴✵✶✷✸✹✺✻✼✽✾✿❀❁❂❃❄❅❆❇❈❉❊❋❌❍❎❏❐❑❒❓❔❕❖❗❘❙❚❛❜❝❞';
		$result = Multibyte::substr($string, 6, 14);
		$expected = '✶✷✸✹✺✻✼✽✾✿❀❁❂❃';
		$this->assertEqual($result, $expected);

		$string = '⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟⻠';
		$result = Multibyte::substr($string, 8, 13);
		$expected = '⺈⺉⺊⺋⺌⺍⺎⺏⺐⺑⺒⺓⺔';
		$this->assertEqual($result, $expected);

		$string = '⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿';
		$result = Multibyte::substr($string, 12, 24);
		$expected = '⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟⽠⽡⽢⽣⽤⽥⽦⽧⽨';
		$this->assertEqual($result, $expected);

		$string = '눡눢눣눤눥눦눧눨눩눪눫눬눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄뉅뉆뉇뉈뉉뉊뉋뉌뉍뉎뉏뉐뉑뉒뉓뉔뉕뉖뉗뉘뉙뉚뉛뉜뉝뉞뉟뉠뉡뉢뉣뉤뉥뉦뉧뉨뉩뉪뉫뉬뉭뉮뉯뉰뉱뉲뉳뉴뉵뉶뉷뉸뉹뉺뉻뉼뉽뉾뉿늀늁늂늃늄';
		$result = Multibyte::substr($string, 12, 24);
		$expected = '눭눮눯눰눱눲눳눴눵눶눷눸눹눺눻눼눽눾눿뉀뉁뉂뉃뉄';
		$this->assertEqual($result, $expected);

		$string = 'ﹰﹱﹲﹳﹴ﹵ﹶﹷﹸﹹﹺﹻﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$result = Multibyte::substr($string, 12);
		$expected = 'ﹼﹽﹾﹿﺀﺁﺂﺃﺄﺅﺆﺇﺈﺉﺊﺋﺌﺍﺎﺏﺐﺑﺒﺓﺔﺕﺖﺗﺘﺙﺚﺛﺜﺝﺞﺟﺠﺡﺢﺣﺤﺥﺦﺧﺨﺩﺪﺫﺬﺭﺮﺯﺰ';
		$this->assertEqual($result, $expected);

		$string = 'ﺱﺲﺳﺴﺵﺶﺷﺸﺹﺺﺻﺼﺽﺾﺿﻀﻁﻂﻃﻄﻅﻆﻇﻈﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔﻕﻖﻗﻘﻙﻚﻛﻜﻝﻞﻟﻠﻡﻢﻣﻤﻥﻦﻧﻨﻩﻪﻫﻬﻭﻮﻯﻰﻱﻲﻳﻴﻵﻶﻷﻸﻹﻺﻻﻼ';
		$result = Multibyte::substr($string, 24, 12);
		$expected = 'ﻉﻊﻋﻌﻍﻎﻏﻐﻑﻒﻓﻔ';
		$this->assertEqual($result, $expected);

		$string = 'ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ';
		$result = Multibyte::substr($string, 11, 2);
		$expected = 'ｌｍ';
		$this->assertEqual($result, $expected);

		$string = '｡｢｣､･ｦｧｨｩｪｫｬｭｮｯｰｱｲｳｴｵｶｷｸ';
		$result = Multibyte::substr($string, 7, 11);
		$expected = 'ｨｩｪｫｬｭｮｯｰｱｲ';
		$this->assertEqual($result, $expected);

		$string = 'ｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝﾞ';
		$result = Multibyte::substr($string, 13, 13);
		$expected = 'ﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒ';
		$this->assertEqual($result, $expected);

		$string = 'Ĥēĺļŏ, Ŵőřļď!';
		$result = Multibyte::substr($string, 3, 4);
		$expected = 'ļŏ, ';
		$this->assertEqual($result, $expected);

		$string = 'Hello, World!';
		$result = Multibyte::substr($string, 3, 4);
		$expected = 'lo, ';
		$this->assertEqual($result, $expected);

		$string = 'čini';
		$result = Multibyte::substr($string, 3);
		$expected = 'i';
		$this->assertEqual($result, $expected);

		$string = 'moći';
		$result = Multibyte::substr($string, 1);
		$expected = 'oći';
		$this->assertEqual($result, $expected);

		$string = 'državni';
		$result = Multibyte::substr($string, 0, 2);
		$expected = 'dr';
		$this->assertEqual($result, $expected);

		$string = '把百度设为首页';
		$result = Multibyte::substr($string, 3, 3);
		$expected = '设为首';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 0, 1);
		$expected = '一';
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 6);
		$expected = false;
		$this->assertEqual($result, $expected);

		$string = '一二三周永龍';
		$result = Multibyte::substr($string, 0);
		$expected = '一二三周永龍';
		$this->assertEqual($result, $expected);
	}
}
?>