3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class A { abstract function foo(); public function callingD() { D::doSomething([$this, 'foo']); } } class B extends A { function foo() { echo 'yayff'; } } class D { public static function doSomething(callable $fun) { $fun(); } } $obj = new B; $obj->callingD();
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
yayff

preferences:
142.29 ms | 404 KiB | 210 Q