3v4l.org

run code in 300+ PHP versions simultaneously
<?php $date1 = strtotime('Hello'); $date2 = strtotime('2015-01-02'); echo $date1; echo $date2; echo (bool) ($date1 > $date2); echo (bool) ($date1 < $date2);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.25, 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 - 8.2.18, 8.3.0 - 8.3.7
14201532001
Output for 7.3.32 - 7.3.33, 8.0.13
14201568001

preferences:
200.65 ms | 402 KiB | 292 Q