3v4l.org

run code in 300+ PHP versions simultaneously
<?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); }

preferences:
53.49 ms | 402 KiB | 5 Q