3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = preg_replace('/A.*?$/Ds', 'X', "A\n"); echo json_encode($x);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.20, 8.1.0 - 8.1.7
"X"

preferences:
50.4 ms | 409 KiB | 5 Q