3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x=10; $x=+1; echo $x;
Output for 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
1

preferences:
77.59 ms | 402 KiB | 65 Q