$url .= '&oauth_nonce=' . $oauth_nonce;
 $url .= '&oauth_signature=' . urlencode($signature);
 $url .= '&oauth_signature_method=HMAC-SHA1';
 $url .= '&oauth_timestamp=' . $oauth_timestamp;
 $url .= '&oauth_token=' . urlencode($oauth_token);
 $url .= '&oauth_version=1.0';
 $url .= '&screen_name=' . $screen_name;
 $response = engine::curl_get_query($url);
 $user_data = json_decode($response);
 $link = "https://twitter.com/" . $user_data->screen_name;
 if ($_SESSION["request"] > date("U") - 60) {
     $_SESSION["request"] = '';
     if (!empty($user_data->name) && !empty($user_data->screen_name)) {
         if (!empty($_SESSION["user"]["email"])) {
             $query = 'UPDATE `nodes_users` SET `url` = "' . $link . '" WHERE `email` = "' . $_SESSION["user"]["email"] . '"';
             engine::myqsl($query);
             $query = 'SELECT * FROM `nodes_users` WHERE `email` = "' . $_SESSION["user"]["email"] . '"';
             $res = engine::mysql($query);
             $data = mysql_fetch_array($res);
         } else {
             $query = 'SELECT * FROM `nodes_users` WHERE `url` = "' . $link . '"';
             $res = engine::mysql($query);
             $data = mysql_fetch_array($res);
             if (empty($data)) {
                 $query = 'INSERT INTO `nodes_users`(name, photo, url, online) VALUES("' . $user_data->name . '", "' . $user_data->profile_image_url . '", "' . $link . '", "' . date("U") . '")';
                 $res = engine::mysql($query);
                 $query = 'SELECT * FROM `nodes_users` WHERE `url` = "' . $link . '"';
                 $res = engine::mysql($query);
                 $data = mysql_fetch_array($res);
             }
         }