3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface OriginalContract { } interface MoreSpecificContract extends OriginalContract { } class Foo { public function foo(OriginalContract $item) {} } class Bar extends Foo { public function foo(MoreSpecificContract $item) {} }
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::foo(MoreSpecificContract $item) must be compatible with Foo::foo(OriginalContract $item) in /in/sS22X on line 18
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/sS22X on line 11
Output for 7.3.32 - 7.3.33
Warning: Declaration of Bar::foo(MoreSpecificContract $item) should be compatible with Foo::foo(OriginalContract $item) in /in/sS22X on line 19
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; Foo has a deprecated constructor in /in/sS22X on line 11 Warning: Declaration of Bar::foo(MoreSpecificContract $item) should be compatible with Foo::foo(OriginalContract $item) in /in/sS22X on line 19
Output for 5.4.4 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Strict Standards: Declaration of Bar::foo() should be compatible with Foo::foo(OriginalContract $item) in /in/sS22X on line 19
Output for 5.4.0 - 5.4.3

Process exited with code 139.
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245.58 ms | 401 KiB | 376 Q