3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php abstract class Abst { abstract public function compare(self $object); } interface I { public function compare(self $object); } class A extends Abst { public function compare(self $object) { return true; } } class B implements I { public function compare(self $bObject) { return true; } } class C extends A { public function compare(self $bObject) { return true; } } $a = new A(); $b = new B(); $c = new C(); $a->compare($a); $a->compare($b); $a->compare($c);
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.1 - 5.4.17
Fatal error: Declaration of A::compare() must be compatible with Abst::compare(Abst $object) in /in/K8bGY on line 13
Process exited with code 255.
Output for 5.2.0 - 5.4.0
Catchable fatal error: Argument 1 passed to A::compare() must be an instance of A, instance of B given, called in /in/K8bGY on line 36 and defined in /in/K8bGY on line 9
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to A::compare() must be an instance of A, called in /in/K8bGY on line 36 and defined in /in/K8bGY on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an instance of A in /in/K8bGY on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/K8bGY 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_CLASS in /in/K8bGY on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/K8bGY on line 3
Process exited with code 255.