- }
-
- // Get referal ID from ref or refid variable
- if (!empty($_GET['ref'])) $ref = secureString($_GET['ref']);
- elseif (!empty($_GET['refid'])) $ref = secureString($_GET['refid']);
-
- if (!empty($ref)) {
- // Test if nickname or numeric id
- if ($ref != "".($ref + 0)."") {
- if (EXT_IS_ACTIVE("nickname")) {
- // Nickname in URL, so load the ID
- $result = SQL_QUERY_ESC("SELECT userid FROM `{!_MYSQL_PREFIX!}_user_data` WHERE nickname='%s' LIMIT 1",
- array($ref), __FILE__, __LINE__);
-
- // Load userid
- list($ref) = SQL_FETCHROW($result);
-
- // Free result
- SQL_FREERESULT($result);
- } else {
- // Invalid request!
- $ref = 0;
- }
- } // END - if
-
- // Also edit this 0 !
- if (empty($ref)) $ref = 0;
-
- // Update session
- set_session('refid', $ref);
-
- // We have an refid here. So we simply add it
- $URL .= bigintval($ref);
-
- // Is the refid valid?
- if ($ref > 0) {
- // Update ref counter
- SQL_QUERY_ESC("UPDATE `{!_MYSQL_PREFIX!}_user_data` SET ref_clicks=ref_clicks+1 WHERE userid=%s LIMIT 1",
- array(bigintval($ref)), __FILE__, __LINE__);
- } // END - if
- } else {
- // No refid and we add our refid (don't forget to set $def_refid!)
- $URL = "index.php";
- }
-
- // Load the URL
- LOAD_URL($URL);
-} else {
- // You have to install first!
- LOAD_URL("install.php");