public static function init($type = null) { if (self::$base === null) { $class = get_called_class(); self::$base = new $class($type); return self::$base; } else { return self::$base; } }
public static function init($type = null) { if (self::$base === null) { $class = get_called_class(); self::$base = new $class($type); return self::$base; } else { return self::$base; } }