3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { } $foo = function () { var_dump($this); }; $foo->call(new Foo());
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
object(Foo)#2 (0) { }
preferences:
72.54 ms | 406 KiB | 5 Q