3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface MyInterface { public function setParent(Foo $parent = null); } class Foo implements MyInterface { public function setParent(self $parent = null) {} }
based on fPDhJ
Output for 5.4.1 - 7.1.0
Output for 5.4.0
Fatal error: Declaration of Foo::setParent() must be compatible with MyInterface::setParent(Foo $parent = NULL) in /in/p0bvS on line 8
Process exited with code 255.
Output for 5.0.0 - 5.3.29
Fatal error: Declaration of Foo::setParent() must be compatible with that of MyInterface::setParent() in /in/p0bvS 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/p0bvS 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 in /in/p0bvS on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/p0bvS on line 4
Process exited with code 255.