- } elseif (NICKNAME_IS_ACTIVE($userid)) {
- // Search for non-empty nickname
- $result = SQL_QUERY_ESC("SELECT nickname FROM `{!_MYSQL_PREFIX!}_user_data` WHERE userid=%s AND nickname != '' LIMIT 1",
- array(bigintval($userid)), __FUNCTION__, __LINE__);
+ } else {
+ // Init result
+ $result = false;
+
+ // Nickname or userid used?
+ if (''.round($uidNick).'' === ''.$uidNick.'') {
+ // Userid given
+ $result = SQL_QUERY_ESC("SELECT `userid` FROM `{!_MYSQL_PREFIX!}_user_data` WHERE `userid` =%s LIMIT 1",
+ array(bigintval($uidNick)), __FUNCTION__, __LINE__);
+ } else {
+ // Nickname given
+ $result = SQL_QUERY_ESC("SELECT `userid` FROM `{!_MYSQL_PREFIX!}_user_data` WHERE `nickname`='%s' LIMIT 1",
+ array($uidNick), __FUNCTION__, __LINE__);
+ }