public static function getInstance() { if (!isset(self::$instance)) { $object = __CLASS__; self::$instance = new $object(); } return self::$instance; }
/** * get instance with a user specific database (DefaultDB) * * @param String $userDb * @return Object self */ public static function getInstanceWithUserDB($userDb) { if (!isset(self::$instance)) { $object = __CLASS__; self::$instance = new $object(); } self::$instance->dbh->select_db($userDb); return self::$instance; }