// Test if the refid is valid
$result = SQL_QUERY_ESC("SELECT userid FROM "._MYSQL_PREFIX."_user_data WHERE userid=%s LIMIT 1",
array(bigintval($GLOBALS['refid'])), __FILE__, __LINE__);
// Test if the refid is valid
$result = SQL_QUERY_ESC("SELECT userid FROM "._MYSQL_PREFIX."_user_data WHERE userid=%s LIMIT 1",
array(bigintval($GLOBALS['refid'])), __FILE__, __LINE__);