3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Base { function f(string $s) { } } interface IFace { function f($s); } class C extends Base implements IFace { }
Output for 7.0.0 - 7.1.0
Fatal error: Declaration of Base::f(string $s) must be compatible with IFace::f($s) in /in/4gVUl on line 12
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Declaration of C::f() must be compatible with that of IFace::f() in /in/4gVUl on line 12
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Declaration of Base::f() must be compatible with IFace::f($s) in /in/4gVUl on line 12
Process exited with code 255.
Output for 5.0.0 - 5.3.29
Fatal error: Declaration of Base::f() must be compatible with that of IFace::f() in /in/4gVUl on line 12
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/4gVUl on line 4
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, expecting ')' in /in/4gVUl on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/4gVUl on line 4
Process exited with code 255.