3v4l.org

run code in 500+ PHP versions simultaneously
<?php interface i{} class a implements i{} var_dump(a::class instanceof i); // false var_dump(in_array(i::class, class_implements(a::class), true)); // true
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
bool(false) bool(true)

preferences:
67.81 ms | 1393 KiB | 4 Q