3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Everything you enter here will be executed by our servers. Try it! echo date('Y-m-d h:m:i', strtotime(strtotime('2013-31-08 00:00:03') . ' + 1 MONTH'));
Output for 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 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
2013-08-22 04:08:00
Output for 7.3.32 - 7.3.33, 8.0.13
2013-08-22 02:08:00
Output for 5.1.0 - 5.1.2
1970-01-01 01:01:00
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
143635-05-03 12:05:00

preferences:
280.39 ms | 402 KiB | 398 Q