3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dt = new DateTimeImmutable(); echo $dt->format(DATE_ISO8601).PHP_EOL; $currenthour = $dt->format("H"); echo $currenthour.PHP_EOL; $dt2 = $dt->setTime($currenthour, 0, 0); echo $dt2->format(DATE_ISO8601).PHP_EOL;
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
2026-03-10T17:16:24+0100 17 2026-03-10T17:00:00+0100
preferences:
47.84 ms | 478 KiB | 5 Q