3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strtotime("+1 day"); echo "\n"; echo strtotime("+1 day", null);echo "\n"; echo strtotime("+1 day", 0);echo "\n"; echo strtotime("+1 day", time());echo "\n";
Output for 8.0.0 - 8.0.29, 8.1.0 - 8.1.22, 8.2.0 - 8.2.9
1691143883 1691143883 86400 1691143883
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 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 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
1691143883 86400 86400 1691143883
Output for 5.1.0 - 5.1.2
1691143883 1691143883
Output for 5.0.0 - 5.0.2
1691107200 86400 86400 1691107200
preferences:
180.35 ms | 409 KiB | 5 Q