3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types = 1); if (! class_exists('undefined')) { class undefined {} } if (! defined('undefined')) { define('undefined', new undefined()); } class X { function foo( SomeType|undefined $object = undefined, bool|undefined $option = undefined, ) { return match($object) { undefined => new DefaultBehavior(), default => $object->someMethod() }; } }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.70.0100.00716.73

preferences:
54.4 ms | 480 KiB | 5 Q