Online PHP editor | refs for v5kXX

<?php class MyDateTime extends \DateTime { public static function createFromFormat($format, $time, $timezone = null) { if (null === $timezone) { $timezone = new DateTimeZone(date_default_timezone_get()); } return new DateTime(parent::createFromFormat($format, $time, $timezone)); } } var_Dump(MyDateTime::createFromFormat('yy-mm-dd', '2017-01-17', new DateTimeZone('Europe/Berlin'))->format('c')); var_Dump(MyDateTime::createFromFormat('yy-mm-dd', '2017-01-17')->format('c'));