// No refid by default
$URL = 'modules.php?module=index';
-if (determineReferalId() > 0) {
+if (determineReferalId() != 0) {
// Test if nickname or numeric id
if (isExtensionActive('nickname')) {
// Nickname in URL, so load the id
setSession('refid', determineReferalId());
// Is the refid valid?
- if (determineReferalId() > 0) {
+ if (isValidUserId(determineReferalId())) {
// Update ref counter
SQL_QUERY_ESC("UPDATE `{?_MYSQL_PREFIX?}_user_data` SET `ref_clicks`=`ref_clicks`+1 WHERE `userid`=%s LIMIT 1",
array(determineReferalId()), __FILE__, __LINE__);