3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_export(in_array('', [NULL]));
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
true
preferences:
64.71 ms | 406 KiB | 5 Q