protected static function init() { if (empty(self::$mem)) { self::$mem = new Memcache(); defined('MEMCACHE_CONF_KEY') || define('MEMCACHE_CONF_KEY', 'Memcache'); $memConf = ZOL_Config::get(MEMCACHE_CONF_KEY); if ($memConf) { self::$servers = $memConf; } foreach (self::$servers as $val) { $exp = explode(':', $val); self::$mem->addServer($exp[0], $exp[1]); } } }