Class Alias Test

class_alias_test.php

<?php
error_reporting(E_ALL);

class request {}

class_alias('request', 'old_request');

interface foo {
	public function baz(\request $request);
}

class bar implements foo {
	public function baz(\old_request $request) {
		echo 'OK';
	}
}

$bar = new bar();

$bar->baz(new request());