3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php interface A { function foo($a); } class B implements A { function foo(array $a) {} }
Output for 7.0.0 - 7.2.0
Fatal error: Declaration of B::foo(array $a) must be compatible with A::foo($a) in /in/creSn on line 7
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Declaration of B::foo() must be compatible with A::foo($a) in /in/creSn on line 7
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Fatal error: Declaration of B::foo() must be compatible with that of A::foo() in /in/creSn on line 7
Process exited with code 255.