--TEST--
Bug #43200.2 (Interface implementation / inheritance not possible in abstract classes)
--FILE--
<?php

interface A {
    function foo();
}

abstract class B implements A {
    abstract public function foo();
}

class C extends B {
    public function foo() {
        echo 'works';
    }
}

$o = new C();
$o->foo();

?>
--EXPECT--
works