3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 999; echo dechex($x);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
3e7
preferences:
94.9 ms | 402 KiB | 89 Q