3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo var_dump(strtotime('23:59:59'));
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.2.18, 8.3.0 - 8.3.6
int(1447714799)
Output for 7.3.32 - 7.3.33, 8.0.13
int(1447718399)
preferences:
261.72 ms | 401 KiB | 330 Q