3v4l.org

run code in 500+ PHP versions simultaneously
<?php $d = 0; echo $d + + - - 1; ?>
Output for 8.1.32 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
1
preferences:
63.12 ms | 864 KiB | 4 Q