xmlrpc to app ...need help

as i explore site code i have added a function name: dolphin.getMatchProfiles in index.php in xmlrpc folder.

            "dolphin.getMatchProfiles" => array(

                "function" => "BxDolXMLRPCSearch::getMatchProfiles",

                "signature" => array (array ($xmlrpcArray, $xmlrpcString, $xmlrpcString, $xmlrpcString, $xmlrpcString)),

                "docstring" => "get search results by location",

            ),            

also i implemented this function in a file which i included. (BxDolXMLRPCSearch.php)

    function getMatchProfiles($sUser, $sPwd, $sNick, $sLang)
    {            
        $iIdProfile = BxDolXMLRPCUtil::getIdByNickname ($sNick);
        if (!$iIdProfile || !($iId = BxDolXMLRPCUtil::checkLogin ($sUser, $sPwd)))
            return new xmlrpcresp(new xmlrpcval(array('error' => new xmlrpcval(1,"int")), "struct"));

        BxDolXMLRPCUtil::setLanguage ($sLang); 
     
        require_once( BX_DIRECTORY_PATH_INC . 'match.inc.php' );
        $sRet = getMatchProfiles($iIdProfile,false,'none');
        return new xmlrpcval ($sRet, "array");
    }

but when i try to use this function in iPhone app, it says response is not xml.

please let me know  if I  need to declare or implement in any other files to have it work?

The return value is not formatted correctly, each element of array must be xmlrpcval too, please refer to other functions in BxDolXMLRPCSearch.php for samples.

Also I recommend to wait for the next version of the app, it will support 3rd-party modifications, so you will be able to add functionality to it without modifying iPhone app source code and/or xmlrpc folder.

 Approx several weeks after 7.0.7 release