3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface A {} interface BB {} interface B extends BB {} interface C extends A {} interface I { public function foo(A&B $arg); } interface J extends I { public function foo(BB $arg); }
Output for 8.2.0 - 8.2.28, 8.3.0 - 8.3.20, 8.4.1 - 8.4.6

preferences:
43.04 ms | 410 KiB | 6 Q