Online PHP editor | refs for OQJur

<?php namespace Concrete\Foo { class Foo {} class_alias('\Concrete\Foo\Foo', 'DerpFoo'); } namespace Concrete\BetterFoo { use DerpFoo; class BetterFoo extends DerpFoo {} } namespace Concrete\Test { class Test { public function __construct(DerpFoo $foo) {} } $f = new Test(new \Concrete\BetterFoo\BetterFoo); }