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<?php abstract class Foo {} class Bar extends Foo {} abstract class Builder { function doIt(Foo $foo) {} } class RealBuilder extends Builder { function doIt(Bar $bar) { var_dump($bar); } } $builder = new RealBuilder(); $bar = new Bar(); $builder->doIt($bar);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of RealBuilder::doIt(Bar $bar) must be compatible with Builder::doIt(Foo $foo) in /in/p2s6M on line 15
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of RealBuilder::doIt(Bar $bar) should be compatible with Builder::doIt(Foo $foo) in /in/p2s6M on line 15 object(Bar)#2 (0) { }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of RealBuilder::doIt(Bar $bar) should be compatible with Builder::doIt(Foo $foo) in /in/p2s6M on line 19 object(Bar)#2 (0) { }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Declaration of RealBuilder::doIt() should be compatible with Builder::doIt(Foo $foo) in /in/p2s6M on line 19 object(Bar)#2 (0) { }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Strict Standards: Declaration of RealBuilder::doIt() should be compatible with that of Builder::doIt() in /in/p2s6M on line 19 object(Bar)#2 (0) { }
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/p2s6M on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CLASS in /in/p2s6M on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/p2s6M on line 3
Process exited with code 255.
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