3v4l.org

run code in 500+ PHP versions simultaneously
<?php class A { } class B extends A { } interface AI { public function test(B $a); } class Run implements AI { public function test(A $b) { return; } }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9

preferences:
98.31 ms | 1133 KiB | 4 Q