Online PHP editor | refs for lqIGW

<?php if (class_exists('DateTimeImmutable')) { $d = new DateTimeImmutable('2012-02-01 00:00:00.123456'); $d = $d->setTimeZone(new DateTimeZone('UTC')); echo $d->format('u'); } if (class_exists('DateTimeZone')) { $d = new DateTime('2012-02-01 00:00:00.123456'); $d->setTimeZone(new DateTimeZone('UTC')); echo $d->format('u'); }