Fix caching

Author: Jamie Snape

library/Zend/Cache/Backend/Libmemcached.php

@@ -96,7 +96,7 @@ class Zend_Cache_Backend_Libmemcached extends Zend_Cache_Backend implements Zend
      */
     public function __construct(array $options = array())
     {
-        if (!extension_loaded('memcached') || session_save_path() !== 'Memcache') {
+        if (!extension_loaded('memcached') && session_save_path() !== 'Memcache') {
             Zend_Cache::throwException('The memcached extension must be loaded for using this backend !');
         }
 

library/Zend/Cache/Backend/Memcached.php

@@ -119,7 +119,7 @@ class Zend_Cache_Backend_Memcached extends Zend_Cache_Backend implements Zend_Ca
      */
     public function __construct(array $options = array())
     {
-        if (!extension_loaded('memcache') || session_save_path() !== 'Memcache') {
+        if (!extension_loaded('memcache') && session_save_path() !== 'Memcache') {
             Zend_Cache::throwException('The memcache extension must be loaded for using this backend !');
         }
         parent::__construct($options);