Online PHP editor | output for 1fi6I

<?php class P implements \SessionUpdateTimestampHandlerInterface { #[\ReturnTypeWillChange] public function validateId(string $id) { return TRUE; } #[\ReturnTypeWillChange] public function updateTimestamp(string $id, string $data) { return TRUE; } } class C extends P implements \SessionUpdateTimestampHandlerInterface { public function validateId($id) {} } $c = new C(); print("ok");