3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; do { $i++; } while (md5($i) != "0e123"); echo $i; ?>
Output for 7.1.28, 7.2.17 - 7.2.33, 7.3.4 - 7.3.33, 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6

Process exited with code 137.
preferences:
142.77 ms | 403 KiB | 140 Q