private function _saveAvatarByUcenter($uid, $avatarBig, $avatarMid, $avatarSmall)
 {
     loaducenter();
     $uc_avatarflash = uc_avatar($uid, 'virtual', 0);
     if (!empty($uc_avatarflash[7])) {
         $parse = parse_url($uc_avatarflash[7]);
         if (!empty($parse['query'])) {
             $url = sprintf('%s/index.php?m=user&a=rectavatar&%s', UC_API, $parse['query']);
             $saveRes = WebUtils::httpRequestByDiscuzApi($url, sprintf('avatar1=%s&avatar2=%s&avatar3=%s', $avatarBig, $avatarMid, $avatarSmall));
             $saveRes = WebUtils::parseXmlToArray($saveRes);
             if (!empty($saveRes['face']['@attributes']['success']) && $saveRes['face']['@attributes']['success'] == 1) {
                 return true;
             }
         }
     }
     return false;
 }