Online PHP editor | refs for FU3BJ

@ 2015-12-04T07:34:35Z

<?php

interface A {
    function x(self $o);
}

class B implements A {
    function x(self $o) {
        return $o;
    }
}

class C extends B {
    
}

$c = new C();

var_dump($c->x($c));