3v4l.org

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(self $baz) { parent::dump($baz); } } (new Foo)->dump(new Bar); (new Bar)->dump(new Bar); (new Bar)->dump(new Foo);
based on buLmf
Output for 7.0.0 - 7.1.0
Warning: Declaration of Bar::dump(Bar $baz) should be compatible with Foo::dump(Foo $baz) in /in/Mdk7X on line 17 object(Bar)#2 (0) { } object(Bar)#2 (0) { } Fatal error: Uncaught TypeError: Argument 1 passed to Bar::dump() must be an instance of Bar, instance of Foo given, called in /in/Mdk7X on line 21 and defined in /in/Mdk7X:13 Stack trace: #0 /in/Mdk7X(21): Bar->dump(Object(Foo)) #1 {main} thrown in /in/Mdk7X on line 13
Process exited with code 255.
Output for hhvm-3.12.0 - 3.13.2
object(Bar)#2 (0) { } object(Bar)#2 (0) { } Fatal error: Uncaught TypeError: Argument 1 passed to Bar::dump() must be an instance of Bar, Foo given in /in/Mdk7X:16 Stack trace: #0 /in/Mdk7X(21): Bar->dump() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0
object(Bar)#2 (0) { } object(Bar)#2 (0) { } Catchable fatal error: Argument 1 passed to Bar::dump() must be an instance of Bar, Foo given in /in/Mdk7X on line 16
Process exited with code 255.
Output for 5.4.1 - 5.6.28
Strict Standards: Declaration of Bar::dump() should be compatible with Foo::dump(Foo $baz) in /in/Mdk7X on line 17 object(Bar)#2 (0) { } object(Bar)#1 (0) { } Catchable fatal error: Argument 1 passed to Bar::dump() must be an instance of Bar, instance of Foo given, called in /in/Mdk7X on line 21 and defined in /in/Mdk7X on line 13
Process exited with code 255.
Output for 5.4.0
object(Bar)#2 (0) { } object(Bar)#1 (0) { } Catchable fatal error: Argument 1 passed to Bar::dump() must be an instance of Bar, instance of Foo given, called in /in/Mdk7X on line 21 and defined in /in/Mdk7X on line 13
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/Mdk7X on line 19
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/Mdk7X on line 19
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/Mdk7X on line 6
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/Mdk7X on line 6
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/Mdk7X on line 6
Process exited with code 255.