3v4l.org

run code in 200+ PHP versions simultaneously
<?php echo strtotime("+40 minutes");
Output for 5.3.0 - 5.5.15, 5.5.17 - 7.0.18, 7.0.20 - 7.2.26, 7.2.28 - 7.4.4
1584970728
Output for 5.5.16, 7.0.19, 7.2.27
1584970729
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.2.17
1580108526
Output for 5.0.0 - 5.0.2
1580082000