Esta función es parte de un componente de cakephp y obtiene un feed de una busqueda en youtube

gistfile1.php

<?php
/**
 *  Search Videos 
 *  @param array $params
 *
 */
function search($params){
    $params = $this->__paramsToUrl($params);
    $this->socket = new HttpSocket();
    $uri = "http://gdata.youtube.com/feeds/api/videos".$params;
    $request = array(
                        'method'    => 'GET',
                        'header'    => array(   'Content-length'    => 0,
                                                'Content-Type'      => 'application/atom+xml charset=UTF-8'                                                    
                                             ),
                        'uri'       => $uri
                    );
    $output = $this->socket->request($request);
    $output =  new Xml($output);
    $output = Set::reverse($output);
        
    return $output;        
}
?>