3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo { public function resolveReferences(?string $context = null); } class Bar implements Foo { public function resolveReferences(string $context = null) { } }
Output for git.master, git.master_jit
Deprecated: Bar::resolveReferences(): Implicitly marking parameter $context as nullable is deprecated, the explicit nullable type must be used instead in /in/1Wcnh on line 8

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:
51.88 ms | 405 KiB | 5 Q