/** * 单例模型,获取实例的方法 * @return [Object] [redis操作对象的一个实例,该实例已经完成了连接操作] */ public static function getInstance() { if (!self::$_instance instanceof self) { $conf = Registry::get('global_conf'); self::$_instance = new redis(); self::$_r = new Credis_Client($conf['redis_server_url'], $conf['redis_server_port']); } return self::$_instance; }