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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { public function dump(self $baz) { var_dump($baz); } } class Bar extends Foo { public function dump(Foo $baz) { parent::dump($baz); } } (new Foo)->dump(new Bar); (new Bar)->dump(new Bar); (new Bar)->dump(new Foo);
Output for hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(Bar)#2 (0) { } object(Bar)#2 (0) { } object(Foo)#2 (0) { }
Output for 5.4.1 - 5.6.28
object(Bar)#2 (0) { } object(Bar)#1 (0) { } object(Foo)#2 (0) { }
Output for 5.4.0
Strict Standards: Declaration of Bar::dump() should be compatible with Foo::dump(self $baz) in /in/73rBE on line 16 object(Bar)#2 (0) { } object(Bar)#1 (0) { } object(Foo)#2 (0) { }
Output for 5.1.0 - 5.3.29
Strict Standards: Declaration of Bar::dump() should be compatible with that of Foo::dump() in /in/73rBE on line 16 Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/73rBE on line 18
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Strict Standards: Declaration of Bar::dump() should be compatible with that of Foo::dump() in /in/73rBE on line 16 Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/73rBE on line 18
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/73rBE on line 5
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, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/73rBE on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/73rBE on line 5
Process exited with code 255.