3v4l.org

run code in 300+ PHP versions simultaneously
<?php $derp = mktime(0, 0, 0, date('n'), date('j') - date('j') + 1); echo "\n".date('c', $derp); echo "\n".date('Y-m-d h:i:s a', $derp);
Output for 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, 7.2.17 - 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 - 8.2.18, 8.3.0 - 8.3.6
2014-08-01T00:00:00+02:00 2014-08-01 12:00:00 am
Output for 7.3.32 - 7.3.33, 8.0.13
2014-08-01T00:00:00+00:00 2014-08-01 12:00:00 am
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
c 2014-08-01 12:00:00 am
preferences:
244.74 ms | 402 KiB | 382 Q