Merge upstream branch and some changes for better readability

1 files changed, 11 insertions, 9 deletions

diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index 17437c1ca..959e2eea8 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -44,28 +44,28 @@ class CI_Encrypt {
 	 * @var string
 	 */
 	public $encryption_key		= '';
-	
+
 	/**
 	 * Type of hash operation
-	 * 
+	 *
 	 * @var string
 	 */
 	protected $_hash_type		= 'sha1';
-	
+
 	/**
 	 * Flag for the existance of mcrypt
 	 *
 	 * @var bool
 	 */
 	protected $_mcrypt_exists	= FALSE;
-	
+
 	/**
 	 * Current cipher to be used with mcrypt
 	 *
 	 * @var string
 	 */
 	protected $_mcrypt_cipher;
-	
+
 	/**
 	 * Method for encrypting/decrypting data
 	 *
@@ -75,6 +75,8 @@ class CI_Encrypt {
 
 	/**
 	 * Initialize Encryption class
+	 *
+	 * @return	void
 	 */
 	public function __construct()
 	{
@@ -95,9 +97,9 @@ class CI_Encrypt {
 	 */
 	public function get_key($key = '')
 	{
-		if ($key == '')
+		if ($key === '')
 		{
-			if ($this->encryption_key != '')
+			if ($this->encryption_key !== '')
 			{
 				return $this->encryption_key;
 			}
@@ -447,7 +449,7 @@ class CI_Encrypt {
 	 */
 	protected function _get_cipher()
 	{
-		if ($this->_mcrypt_cipher == '')
+		if ($this->_mcrypt_cipher === NULL)
 		{
 			return $this->_mcrypt_cipher = MCRYPT_RIJNDAEL_256;
 		}
@@ -464,7 +466,7 @@ class CI_Encrypt {
 	 */
 	protected function _get_mode()
 	{
-		if ($this->_mcrypt_mode == '')
+		if ($this->_mcrypt_mode === NULL)
 		{
 			return $this->_mcrypt_mode = MCRYPT_MODE_CBC;
 		}