3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = strtotime('2014-05-20 12:34'); $x = null; echo date('Y-m-d H:i:s', $x);
Output for 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
2014-05-08 08:19:02
Output for 8.0.13
2014-05-08 06:19:02
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 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 - 5.6.28, 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
1970-01-01 01:00:00
Output for 7.3.32 - 7.3.33
1970-01-01 00:00:00

preferences:
255.58 ms | 401 KiB | 381 Q