3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public static function foo(int $bar): void {} } class B extends A { public static function foo(string $bar): void {} }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of B::foo(string $bar): void must be compatible with A::foo(int $bar): void in /in/ZP47X on line 9
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:
143.28 ms | 995 KiB | 7 Q