3v4l.org

run code in 300+ PHP versions simultaneously
<?php $password = 'FLAG_????????????????'; echo "$password" ?>
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
FLAG_????????????????

preferences:
52.6 ms | 402 KiB | 62 Q