3v4l.org

run code in 300+ PHP versions simultaneously
<?php $date = '25 May 2016 10:45:53'; echo strtotime($date); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
1464165953
Output for 7.3.32 - 7.3.33, 8.0.13
1464173153

preferences:
176.19 ms | 401 KiB | 197 Q