mtclient::getPostCategories PHP Метод

    function getPostCategories($postID)
    {
        $XMLpostid = new xmlrpcval($postID, "string");
        $r = new xmlrpcmsg("mt.getPostCategories", array($XMLpostid, $this->XMLusername, $this->XMLpassword));
        $r = $this->exec($r);
        return $r;
    }