3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface I { public function compare(self $object); } class A implements I { public function compare(I $aObject) { 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 7.0.0 - 7.1.0
Fatal error: Declaration of B::compare(B $bObject) must be compatible with I::compare(I $object) in /in/pGluG on line 13
Process exited with code 255.
Output for 5.4.1 - 5.6.28
Fatal error: Declaration of B::compare() must be compatible with I::compare(I $object) in /in/pGluG on line 14
Process exited with code 255.
Output for 5.4.0
Fatal error: Declaration of A::compare() must be compatible with I::compare(self $object) in /in/pGluG on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Declaration of A::compare() must be compatible with that of I::compare() in /in/pGluG on line 6
Process exited with code 255.
Output for 5.0.0 - 5.2.17
Fatal error: Declaration of A::compare() must be compatible with that of I::compare() in /in/pGluG on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/pGluG 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/pGluG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/pGluG on line 3
Process exited with code 255.