From 3f10a0227aeaa3d178d6a93fd4a830c52818a4d9 Mon Sep 17 00:00:00 2001
From: mark_story <mark@mark-story.com>
Date: Mon, 13 Feb 2017 21:50:51 -0500
Subject: [PATCH] Allow false/true to be read as keys in Hash::get().

While these are not values within the documented types, there exist use
cases in CakeSession that necessitate these to be supported types.

Refs #10196
---
 lib/Cake/Test/Case/Utility/HashTest.php | 11 +++++++----
 lib/Cake/Utility/Hash.php               |  6 ++++--
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/lib/Cake/Test/Case/Utility/HashTest.php b/lib/Cake/Test/Case/Utility/HashTest.php
index 53b1d40c8..5618ddc8b 100644
--- a/lib/Cake/Test/Case/Utility/HashTest.php
+++ b/lib/Cake/Test/Case/Utility/HashTest.php
@@ -236,10 +236,13 @@ class HashTest extends CakeTestCase {
  */
 	public function testGetEmptyKey() {
 		$data = array(
-			'' => 'some value'
+			true => 'true value',
+			false => 'false value',
+			'' => 'some value',
 		);
-		$result = Hash::get($data, '');
-		$this->assertSame($data[''], $result);
+		$this->assertSame($data[''], Hash::get($data, ''));
+		$this->assertSame($data[false], Hash::get($data, false));
+		$this->assertSame($data[true], Hash::get($data, true));
 	}
 
 /**
@@ -249,7 +252,7 @@ class HashTest extends CakeTestCase {
  * @return void
  */
 	public function testGetInvalidPath() {
-		Hash::get(array('one' => 'two'), true);
+		Hash::get(array('one' => 'two'), new StdClass());
 	}
 
 /**
diff --git a/lib/Cake/Utility/Hash.php b/lib/Cake/Utility/Hash.php
index 2ca530ece..af7a098eb 100644
--- a/lib/Cake/Utility/Hash.php
+++ b/lib/Cake/Utility/Hash.php
@@ -48,11 +48,13 @@ class Hash {
 		}
 		if (is_string($path) || is_numeric($path)) {
 			$parts = explode('.', $path);
+		} elseif (is_bool($path) || $path === null) {
+			$parts = [$path];
 		} else {
 			if (!is_array($path)) {
 				throw new InvalidArgumentException(__d('cake_dev',
-					'Invalid Parameter %s, should be dot separated path or array.',
-					$path
+					'Invalid path parameter: %s, should be dot separated path or array.',
+					var_export($path, true)
 				));
 			}
 			$parts = $path;