3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { function myMethod(string $name): bool { return []; } } $foo = new Foo(); // $foo->myMethod([]); // Fatal error // $foo->myMethod("name"); // Fatal error
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 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

preferences:
147.95 ms | 407 KiB | 5 Q