- // Lookup the category
- $result = SQL_QUERY_ESC("SELECT cat FROM "._MYSQL_PREFIX."_cats WHERE id=%s LIMIT 1",
- array(bigintval($cid)), __FILE__, __LINE__);
- if (SQL_NUMROWS($result) == 1) {
- // Category found... :-)
- list($ret) = SQL_FETCHROW($result);
- } // END - if
+ // Is the category id set?
+ if (!empty($cid)) {
+ // Lookup the category in database
+ $result = SQL_QUERY_ESC("SELECT cat FROM "._MYSQL_PREFIX."_cats WHERE id=%s LIMIT 1",
+ array(bigintval($cid)), __FILE__, __LINE__);
+ if (SQL_NUMROWS($result) == 1) {
+ // Category found... :-)
+ list($ret) = SQL_FETCHROW($result);
+ } // END - if