diff --git a/lib/Cake/Configure/IniReader.php b/lib/Cake/Configure/IniReader.php
index b571c7004..debd685c6 100644
--- a/lib/Cake/Configure/IniReader.php
+++ b/lib/Cake/Configure/IniReader.php
@@ -128,6 +128,7 @@ class IniReader implements ConfigReaderInterface {
 			if ($value === '') {
 				$value = false;
 			}
+			unset($values[$key]);
 			if (strpos($key, '.') !== false) {
 				$values = Hash::insert($values, $key, $value);
 			} else {
@@ -153,11 +154,31 @@ class IniReader implements ConfigReaderInterface {
 			if (is_array($value)) {
 				$keyValues = Hash::flatten($value, '.');
 				foreach ($keyValues as $k => $v) {
-					$result[] = "$k = " . trim(var_export($v, true), "'");
+					$result[] = "$k = " . $this->_value($v);
 				}
 			}
 		}
 		$contents = join("\n", $result);
 		return file_put_contents($this->_path . $filename, $contents);
 	}
+
+/**
+ * Converts a value into the ini equivalent
+ *
+ * @param mixed $value to export.
+ * @return string String value for ini file.
+ */
+	protected function _value($val) {
+		if ($val === null) {
+			return 'null';
+		}
+		if ($val === true) {
+			return 'true';
+		}
+		if ($val === false) {
+			return 'false';
+		}
+		return (string)$val;
+	}
+
 }
diff --git a/lib/Cake/Test/Case/Configure/IniReaderTest.php b/lib/Cake/Test/Case/Configure/IniReaderTest.php
index 0caaf92e2..e4b463450 100644
--- a/lib/Cake/Test/Case/Configure/IniReaderTest.php
+++ b/lib/Cake/Test/Case/Configure/IniReaderTest.php
@@ -21,11 +21,24 @@ App::uses('IniReader', 'Configure');
 class IniReaderTest extends CakeTestCase {
 
 /**
- * The test file that will be read.
+ * Test data to serialize and unserialize.
  *
- * @var string
+ * @var array
  */
-	public $file;
+	public $testData = array(
+		'One' => array(
+			'two' => 'value',
+			'three' => array(
+				'four' => 'value four'
+			),
+			'is_null' => null,
+			'bool_false' => false,
+			'bool_true' => true,
+		),
+		'Asset' => array(
+			'timestamp' => 'force'
+		),
+	);
 
 /**
  * setup
@@ -92,6 +105,8 @@ class IniReaderTest extends CakeTestCase {
 		$this->assertTrue(isset($config['database']['db']['username']));
 		$this->assertEquals('mark', $config['database']['db']['username']);
 		$this->assertEquals(3, $config['nesting']['one']['two']['three']);
+		$this->assertFalse(isset($config['database.db.username']));
+		$this->assertFalse(isset($config['database']['db.username']));
 	}
 
 /**
@@ -132,32 +147,41 @@ class IniReaderTest extends CakeTestCase {
  * @return void
  */
 	public function testDump() {
-		$reader = new IniReader($this->path);
-		$data = array(
-			'One' => array(
-				'two' => 'value',
-				'three' => array(
-					'four' => 'value four'
-				)
-			),
-			'Asset' => array(
-				'timestamp' => 'force'
-			),
-		);
-		$result = $reader->dump('test.ini', $data);
+		$reader = new IniReader(TMP);
+		$result = $reader->dump('test.ini', $this->testData);
 		$this->assertTrue($result > 0);
 
 		$expected = <<<INI
 [One]
 two = value
 three.four = value four
+is_null = null
+bool_false = false
+bool_true = true
 [Asset]
 timestamp = force
 INI;
-		$file = $this->path . 'test.ini';
+		$file = TMP . 'test.ini';
 		$result = file_get_contents($file);
 		unlink($file);
 
+		$this->assertTextEquals($expected, $result);
+	}
+
+/**
+ * Test that dump() makes files read() can read.
+ *
+ * @return void
+ */
+	public function testDumpRead() {
+		$reader = new IniReader(TMP);
+		$reader->dump('test.ini', $this->testData);
+		$result = $reader->read('test.ini');
+		unlink(TMP . 'test.ini');
+
+		$expected = $this->testData;
+		$expected['One']['is_null'] = false;
+
 		$this->assertEquals($expected, $result);
 	}
 
diff --git a/lib/Cake/Test/Case/Configure/PhpReaderTest.php b/lib/Cake/Test/Case/Configure/PhpReaderTest.php
index 70a768501..3967db355 100644
--- a/lib/Cake/Test/Case/Configure/PhpReaderTest.php
+++ b/lib/Cake/Test/Case/Configure/PhpReaderTest.php
@@ -20,6 +20,26 @@ App::uses('PhpReader', 'Configure');
 
 class PhpReaderTest extends CakeTestCase {
 
+/**
+ * Test data to serialize and unserialize.
+ *
+ * @var array
+ */
+	public $testData = array(
+		'One' => array(
+			'two' => 'value',
+			'three' => array(
+				'four' => 'value four'
+			),
+			'is_null' => null,
+			'bool_false' => false,
+			'bool_true' => true,
+		),
+		'Asset' => array(
+			'timestamp' => 'force'
+		),
+	);
+
 /**
  * setup
  *
@@ -103,20 +123,8 @@ class PhpReaderTest extends CakeTestCase {
  * @return void
  */
 	public function testDump() {
-		$reader = new PhpReader($this->path);
-		$data = array(
-			'One' => array(
-				'two' => 'value',
-				'three' => array(
-					'four' => 'value four'
-				),
-				'null' => null
-			),
-			'Asset' => array(
-				'timestamp' => 'force'
-			),
-		);
-		$result = $reader->dump('test.php', $data);
+		$reader = new PhpReader(TMP);
+		$result = $reader->dump('test.php', $this->testData);
 		$this->assertTrue($result > 0);
 		$expected = <<<PHP
 <?php
@@ -128,7 +136,9 @@ class PhpReaderTest extends CakeTestCase {
     array (
       'four' => 'value four',
     ),
-    'null' => NULL,
+    'is_null' => NULL,
+    'bool_false' => false,
+    'bool_true' => true,
   ),
   'Asset' => 
   array (
@@ -136,11 +146,25 @@ class PhpReaderTest extends CakeTestCase {
   ),
 );
 PHP;
-		$file = $this->path . 'test.php';
+		$file = TMP . 'test.php';
 		$contents = file_get_contents($file);
 
 		unlink($file);
-		$this->assertEquals($expected, $contents);
+		$this->assertTextEquals($expected, $contents);
+	}
+
+/**
+ * Test that dump() makes files read() can read.
+ *
+ * @return void
+ */
+	public function testDumpRead() {
+		$reader = new PhpReader(TMP);
+		$reader->dump('test.php', $this->testData);
+		$result = $reader->read('test.php');
+		unlink(TMP . 'test.php');
+
+		$this->assertTextEquals($this->testData, $result);
 	}
 
 }