3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php interface Foo { public function setFoo(Foo $aFoo); } class Baz implements Foo { private $foo; private function setFoo(Baz $aFoo) // fatal error { $this->foo = $aFoo; } }

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Typed properties v2
Fatal error: Access level to Baz::setFoo() must be public (as in class Foo) in /in/KbICD on line 8
Output for Array change keys
Fatal error: Access level to Baz::setFoo() must be public (as in class Foo) in /in/KbICD on line 8
Output for Lexical anon
Fatal error: Access level to Baz::setFoo() must be public (as in class Foo) in /in/KbICD on line 8

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