3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} class Bar {} class Baz { public Foo|Bar $a; } $baz = new Baz; // var_dump($baz->a);
Output for 8.1.30 - 8.1.33, 8.2.22 - 8.2.29, 8.3.5 - 8.3.25, 8.4.1 - 8.4.12
preferences:
59.88 ms | 406 KiB | 5 Q