3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($ok) { if ($ok) { return array('foo', 42); } return null; } foreach (array(true, false) as $ok) { list($a, $b) = foo($ok); printf("a: %s; b: %s\n", json_encode($a), json_encode($b)); }

preferences:
37.13 ms | 402 KiB | 5 Q