3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface Foo { public function setFoo(self $aFoo); } interface Bar extends Foo { public function setFoo(self $aFoo); // fatal error } class Baz implements Bar { private $foo; public function setFoo(self $aFoo) // fatal error { $this->foo = $aFoo; } }
Output for 7.0.0 - 7.1.0
Fatal error: Declaration of Bar::setFoo(Bar $aFoo) must be compatible with Foo::setFoo(Foo $aFoo) in /in/U6Kpo on line 8
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught Error: Declaration of Bar::setFoo() must be compatible with that of Foo::setFoo() in /in/U6Kpo:8 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.10.0
Fatal error: Declaration of Bar::setFoo() must be compatible with that of Foo::setFoo() in /in/U6Kpo on line 8
Process exited with code 255.
Output for 5.4.1 - 5.6.28
Fatal error: Declaration of Bar::setFoo() must be compatible with Foo::setFoo(Foo $aFoo) in /in/U6Kpo on line 9
Process exited with code 255.
Output for 5.3.9 - 5.4.0
Output for 5.3.0 - 5.3.8
Fatal error: Can't inherit abstract function Foo::setFoo() (previously declared abstract in Bar) in /in/U6Kpo on line 9
Process exited with code 255.
Output for 5.0.0 - 5.2.17
Fatal error: Can't inherit abstract function Foo::setFoo() (previously declared abstract in Bar) in /in/U6Kpo on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/U6Kpo on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/U6Kpo on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/U6Kpo on line 3
Process exited with code 255.