3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface OriginalContract { } interface MoreSpecificContract extends OriginalContract { } interface BazInterface { public function baz(OriginalContract $item); } class Foo implements BazInterface { public function baz(OriginalContract $item) {} } class Bar implements BazInterface { public function baz(MoreSpecificContract $item) {} }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Declaration of Bar::baz(MoreSpecificContract $item) must be compatible with BazInterface::baz(OriginalContract $item) in /in/EgEGZ on line 23
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33
Fatal error: Declaration of Bar::baz(MoreSpecificContract $item) must be compatible with BazInterface::baz(OriginalContract $item) in /in/EgEGZ on line 21
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Declaration of Bar::baz() must be compatible with BazInterface::baz(OriginalContract $item) in /in/EgEGZ on line 22
Process exited with code 255.
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267.78 ms | 402 KiB | 272 Q