// Only confirmed members shall receive birthday mails...
$result_birthday = SQL_QUERY_ESC("SELECT userid, email, birth_year
FROM "._MYSQL_PREFIX."_user_data
-WHERE status='CONFIRMED' AND birth_day=%s AND birth_month=%s AND birthday_sent < (UNIX_TIMESTAMP() - ".(ONE_DAY * 364).")".$ADD."
+WHERE status='CONFIRMED' AND birth_day=%s AND birth_month=%s AND birthday_sent < (UNIX_TIMESTAMP() - ".($_CONFIG['one_day'] * 364).")".$ADD."
ORDER BY userid",
array($DAY, $MONTH, $VALUE), __FILE__, __LINE__);