//* DEBUG: */ print __FUNCTION__."(<font color=\"#0000aa\">".__LINE__."</font>):uid={$uid},ref={$cacheArray['up_refid'][$cacheArray['back_level']]}<br />\n";
// Refid set?
- if (($cacheArray['up_refid'][$cacheArray['back_level']] > 0) && ($cacheArray['up_refid'][$cacheArray['back_level']] != $uid) && (!empty($cacheArray['up_refid'][$cacheArray['back_level']]))) {
+ if (($cacheArray['up_refid'][$cacheArray['back_level']] > 0) && ($cacheArray['up_refid'][$cacheArray['back_level']] != $uid) && (isset($cacheArray['up_refid'][$cacheArray['back_level']]))) {
// New userid?
if ((isset($cacheArray['up_refid'][$cacheArray['back_level']-1])) && (isset($cacheArray['up_userid'][$cacheArray['up_refid'][$cacheArray['back_level']-1]]))) {
// New userid!