xml file in browser using cakephp

I want to display xml file in broswer: for example: http://www.mysite.c开发者_如何学JAVAom/myfile.xml I know there is code snippet on net:

 App::import('Xml');
        $file = "filename.xml";
        $parsed_xml =& new XML($file);
        $parsed_xml = Set::reverse($parsed_xml); 

but this one display an array of the xml file. How could i display it simple xml file.

Thanks

http://book.cakephp.org/view/483/Creating-an-RSS-feed-with-the-RssHelper