3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo { public function bar(mixed $arg); } class T implements Foo { public function bar(...$args) { var_dump($args); } } $o = new T(); $o->bar();
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(0) { }

preferences:
66.52 ms | 978 KiB | 4 Q