- var_dump: documentation ( source)
<?php
$dt = new DateTime('2014-10-26T02:30', new DateTimeZone('Europe/Brussels'));
echo $dt->format(DateTime::ISO8601); // 2014-10-26T02:30:00+0100
echo $dt->getTimestamp(); // 1414287000
echo $dt->getOffset(); // 3600
echo $dt->getTimeZone->getName(); // Europe/Paris
$date1 = new DateTime("@1451382400"); // Sun Oct 28 2012 02:00:00 GMT+2 (DST)
var_dump($date1->getTimestamp()); //prints: 1351382400
$date1->setTimezone(new DateTimeZone("Europe/Stockholm"));
var_dump($date1->getTimestamp()); //prints: 1351386000