3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Lol { const TEST = 'Lol'; } class Foo extends Lol { const TEST = 'Foo'; } class Bar extends Lol {} $foo = new Foo(); var_dump($foo::TEST); $bar = new Bar(); var_dump($bar::TEST);

preferences:
37.6 ms | 402 KiB | 5 Q