3v4l.org

run code in 300+ PHP versions simultaneously
<?php class One {} class Two {} function check(One|Two $object): void { var_dump($object); } check(new One); check(new Two);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
object(One)#1 (0) { } object(Two)#1 (0) { }

preferences:
57 ms | 1111 KiB | 4 Q