Online PHP editor | refs for nWVSM

@ 2018-04-13T11:49:20Z

<?php

interface Fooable
{
}

class Foo implements Fooable {}

abstract class Bar
{
    public function dump(Foo $object)
    {
        var_dump($object);
    }
}

class Baz extends Bar
{
    public function dump(Fooable $object)
    {
        var_dump($object);
    }
}

(new Baz)->dump(new Foo);