3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function foo($param1, $param2 = null) { } } class Bar extends Foo { public function foo($param1) { } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.21, 8.4.1 - 8.4.7
Fatal error: Declaration of Bar::foo($param1) must be compatible with Foo::foo($param1, $param2 = null) in /in/p726n on line 12
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/p726n on line 3
Output for 7.3.32 - 7.3.33
Warning: Declaration of Bar::foo($param1) should be compatible with Foo::foo($param1, $param2 = NULL) in /in/p726n on line 15
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/p726n on line 3 Warning: Declaration of Bar::foo($param1) should be compatible with Foo::foo($param1, $param2 = NULL) in /in/p726n on line 15
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Strict Standards: Declaration of Bar::foo() should be compatible with Foo::foo($param1, $param2 = NULL) in /in/p726n on line 15

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