3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = new DateTime(); var_dump($d->format('U'));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.26, 7.1.29 - 7.1.33, 7.2.0 - 7.2.15, 7.2.17 - 7.2.33, 7.3.0 - 7.3.1, 7.3.4 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(10) "1545720221"
Output for 7.1.27 - 7.1.28, 7.2.16, 7.3.2 - 7.3.3
string(10) "1545720222"
preferences:
285.98 ms | 402 KiB | 376 Q