diff --git a/lib/Cake/Event/CakeEventManager.php b/lib/Cake/Event/CakeEventManager.php
index 007ef521f..f302ee429 100644
--- a/lib/Cake/Event/CakeEventManager.php
+++ b/lib/Cake/Event/CakeEventManager.php
@@ -72,7 +72,7 @@ class CakeEventManager {
 			self::$_generalManager = $manager;
 		}
 		if (empty(self::$_generalManager)) {
-			self::$_generalManager = new CakeEventManager;
+			self::$_generalManager = new CakeEventManager();
 		}
 
 		self::$_generalManager->_isGlobal = true;
@@ -249,7 +249,6 @@ class CakeEventManager {
 			if ($result !== null) {
 				$event->result = $result;
 			}
-			continue;
 		}
 	}
 
diff --git a/lib/Cake/Network/CakeRequest.php b/lib/Cake/Network/CakeRequest.php
index 648c3643f..d165e8929 100644
--- a/lib/Cake/Network/CakeRequest.php
+++ b/lib/Cake/Network/CakeRequest.php
@@ -385,7 +385,7 @@ class CakeRequest implements ArrayAccess {
  * Get the IP the client is using, or says they are using.
  *
  * @param boolean $safe Use safe = false when you think the user might manipulate their HTTP_CLIENT_IP
- *   header. Setting $safe = false will will also look at HTTP_X_FORWARDED_FOR
+ *   header. Setting $safe = false will also look at HTTP_X_FORWARDED_FOR
  * @return string The client IP.
  */
 	public function clientIp($safe = true) {
@@ -417,10 +417,6 @@ class CakeRequest implements ArrayAccess {
  */
 	public function referer($local = false) {
 		$ref = env('HTTP_REFERER');
-		$forwarded = env('HTTP_X_FORWARDED_HOST');
-		if ($forwarded) {
-			$ref = $forwarded;
-		}
 
 		$base = Configure::read('App.fullBaseUrl') . $this->webroot;
 		if (!empty($ref) && !empty($base)) {
@@ -678,9 +674,13 @@ class CakeRequest implements ArrayAccess {
 /**
  * Get the host that the request was handled on.
  *
+ * @param boolean $trustProxy Whether or not to trust the proxy host.
  * @return string
  */
-	public function host() {
+	public function host($trustProxy = false) {
+		if ($trustProxy) {
+			return env('HTTP_X_FORWARDED_HOST');
+		}
 		return env('HTTP_HOST');
 	}
 
diff --git a/lib/Cake/Test/Case/Network/CakeRequestTest.php b/lib/Cake/Test/Case/Network/CakeRequestTest.php
index 8b4d99dab..6b0499488 100644
--- a/lib/Cake/Test/Case/Network/CakeRequestTest.php
+++ b/lib/Cake/Test/Case/Network/CakeRequestTest.php
@@ -698,10 +698,6 @@ class CakeRequestTest extends CakeTestCase {
 		$_SERVER['HTTP_REFERER'] = Configure::read('App.fullBaseUrl') . '/recipes/add';
 		$result = $request->referer(true);
 		$this->assertSame($result, '/recipes/add');
-
-		$_SERVER['HTTP_X_FORWARDED_HOST'] = 'cakephp.org';
-		$result = $request->referer();
-		$this->assertSame($result, 'cakephp.org');
 	}
 
 /**
@@ -804,9 +800,11 @@ class CakeRequestTest extends CakeTestCase {
  */
 	public function testHost() {
 		$_SERVER['HTTP_HOST'] = 'localhost';
+		$_SERVER['HTTP_X_FORWARDED_HOST'] = 'cakephp.org';
 		$request = new CakeRequest('some/path');
 
 		$this->assertEquals('localhost', $request->host());
+		$this->assertEquals('cakephp.org', $request->host(true));
 	}
 
 /**
diff --git a/lib/Cake/Test/Case/Utility/HashTest.php b/lib/Cake/Test/Case/Utility/HashTest.php
index a23b85f2c..426781f5e 100644
--- a/lib/Cake/Test/Case/Utility/HashTest.php
+++ b/lib/Cake/Test/Case/Utility/HashTest.php
@@ -1527,6 +1527,34 @@ class HashTest extends CakeTestCase {
 		$this->assertEquals($expected, $result);
 	}
 
+/**
+ * test combine() giving errors on key/value length mismatches.
+ *
+ * @expectedException CakeException
+ * @return void
+ */
+	public function testCombineErrorMissingValue() {
+		$data = array(
+			array('User' => array('id' => 1, 'name' => 'mark')),
+			array('User' => array('name' => 'jose')),
+		);
+		Hash::combine($data, '{n}.User.id', '{n}.User.name');
+	}
+
+/**
+ * test combine() giving errors on key/value length mismatches.
+ *
+ * @expectedException CakeException
+ * @return void
+ */
+	public function testCombineErrorMissingKey() {
+		$data = array(
+			array('User' => array('id' => 1, 'name' => 'mark')),
+			array('User' => array('id' => 2)),
+		);
+		Hash::combine($data, '{n}.User.id', '{n}.User.name');
+	}
+
 /**
  * test combine() with a group path.
  *
diff --git a/lib/Cake/Utility/Hash.php b/lib/Cake/Utility/Hash.php
index 3ae1767ff..7482e99d5 100644
--- a/lib/Cake/Utility/Hash.php
+++ b/lib/Cake/Utility/Hash.php
@@ -365,6 +365,7 @@ class Hash {
  * @param string $groupPath A dot-separated string.
  * @return array Combined array
  * @link http://book.cakephp.org/2.0/en/core-utility-libraries/hash.html#Hash::combine
+ * @throws CakeException CakeException When keys and values count is unequal.
  */
 	public static function combine(array $data, $keyPath, $valuePath = null, $groupPath = null) {
 		if (empty($data)) {
@@ -387,10 +388,15 @@ class Hash {
 		} elseif (!empty($valuePath)) {
 			$vals = self::extract($data, $valuePath);
 		}
+		if (empty($vals)) {
+			$vals = array_fill(0, count($keys), null);
+		}
 
-		$count = count($keys);
-		for ($i = 0; $i < $count; $i++) {
-			$vals[$i] = isset($vals[$i]) ? $vals[$i] : null;
+		if (count($keys) !== count($vals)) {
+			throw new CakeException(__d(
+				'cake_dev',
+				'Hash::combine() needs an equal number of keys + values.'
+			));
 		}
 
 		if ($groupPath !== null) {