Accessing Twitter API with Zend_Service_Twitter + Zend_Oauth_Token_Access

sample_zend_service_twitter.php

<?php

require_once 'Zend/Service/Twitter.php';

$me = 'zuzara';
$accessToken = new Zend_Oauth_Token_Access;
$accessToken->setToken('***')
            ->setTokenSecret('***'); // grab them at https://dev.twitter.com/apps/***/my_token

$twitter = new Zend_Service_Twitter(array(
            'username' => $me,
            'accessToken' => $accessToken,
            ));
$response = $twitter->user->friends();
var_dump($response);