- var_dump: documentation ( source)
<?php
for ($i = 0; $i < 1000; ++$i) {
$tz1 = new DateTime('now', new DateTimeZone('UTC'));
$tz2 = new DateTime('now', new DateTimeZone('Europe/London'));
$tz1->setTimeZone(new DateTimeZone('UTC'));
$tz2->setTimeZone(new DateTimeZone('UTC'));
var_dump($tz1 == $tz2);
}