3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Foo { public function bar($baz = null); } class Bar implements Foo { public function bar() { } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of Bar::bar() must be compatible with Foo::bar($baz = null) in /in/mda4N on line 10
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Bar has a deprecated constructor in /in/mda4N on line 8 Fatal error: Declaration of Bar::bar() must be compatible with Foo::bar($baz = NULL) in /in/mda4N on line 10
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Declaration of Bar::bar() must be compatible with Foo::bar($baz = NULL) in /in/mda4N on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Bar has a deprecated constructor in /in/mda4N on line 8 Fatal error: Declaration of Bar::bar() must be compatible with Foo::bar($baz = NULL) in /in/mda4N on line 8
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Declaration of Bar::bar() must be compatible with Foo::bar($baz = NULL) in /in/mda4N on line 9
Process exited with code 255.

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