3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Base { function f(string $s) {} } interface I { function f($s); } class C extends Base implements I {}
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of Base::f(string $s) must be compatible with I::f($s) in /in/OCpLE on line 4
Process exited with code 255.

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
45.99 ms | 401 KiB | 8 Q