3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Service { } class Factory { function make(Service $s) {} } class MyService extends Service { } class MyFactory extends Factory { function make(MyService $s) {} }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Fatal error: Declaration of MyFactory::make(MyService $s) must be compatible with Factory::make(Service $s) in /in/k5II8 on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Declaration of MyFactory::make(MyService $s) should be compatible with Factory::make(Service $s) in /in/k5II8 on line 6
Output for 5.5.0 - 5.5.36, 5.6.0 - 5.6.28
Strict Standards: Declaration of MyFactory::make() should be compatible with Factory::make(Service $s) in /in/k5II8 on line 6
preferences:
143.8 ms | 409 KiB | 5 Q