3v4l.org

run code in 500+ PHP versions simultaneously
<?php interface i { function foo($a, $b = 2); } class x implements i { // This is compatible with the interface definition function foo(...$args) {} } ?>
Output for 8.1.32 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9

preferences:
55.5 ms | 880 KiB | 4 Q