/** * 单例 * @return instance */ public static function instance() { if (self::$_instance === NULL) { self::$_instance = new self(); } return self::$_instance; }
/** * @return bool */ function _buckys_session_gc() { $db = new Database_Mysqli(DATABASE_HOST, DATABASE_USERNAME, DATABASE_PASSWORD, DATABASE_NAME); $db->query("DELETE FROM " . TABLE_SESSIONS . " WHERE expiry < '" . time() . "'"); return true; }