3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $lmao ?? 'LOL' . "\n";
Output for 7.4.33, 8.1.0 - 8.1.29, 8.2.0 - 8.2.20, 8.3.0 - 8.3.8
LOL

preferences:
77.33 ms | 402 KiB | 66 Q