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 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
1
preferences:
53.12 ms | 880 KiB | 4 Q