Clean up Core\Cache file

- Remove unused use statement
- Use explicit types for Memcache object

diff --git a/src/Core/Cache.php b/src/Core/Cache.php
index 05ccdd4feca7e07febc8245ac9ae2296906832d2..1f3c9e82f02b1ebd5689b45c83bc312c9abf81c3 100644 (file)
--- a/src/Core/Cache.php
+++ b/src/Core/Cache.php
@@ -5,7 +5,6 @@
 namespace Friendica\Core;
 
 use Friendica\Core\Config;
-use Friendica\Core\PConfig;
 use Friendica\Database\DBM;
 use dba;
 
@@ -17,13 +16,13 @@ require_once 'include/dba.php';
 class Cache
 {
        /**
-        * @brief Check for memcache and open a connection if configured
+        * @brief Check for Memcache and open a connection if configured
         *
-        * @return object|boolean The memcache object - or "false" if not successful
+        * @return Memcache|boolean The Memcache object - or "false" if not successful
         */
        public static function memcache()
        {
-               if (!function_exists('memcache_connect')) {
+               if (!class_exists('\Memcache', false)) {
                        return false;
                }
 
@@ -34,7 +33,7 @@ class Cache
                $memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
                $memcache_port = Config::get('system', 'memcache_port', 11211);
 
-               $memcache = new \Memcache;
+               $memcache = new \Memcache();
 
                if (!$memcache->connect($memcache_host, $memcache_port)) {
                        return false;