<?php $fk_id = ''; $fk_secret = ''; $us_login = $_GET['us_login']; $oa = $_GET['oa']; $o = $_GET['o']; $sign = md5($fk_id.':'.$oa.':'.$fk_secret.':'.$o); if ($fk_id == '' OR $fk_secret == '' OR $oa == '' OR $o == '' or $us_login == '') die(); header("Location: http://www.free-kassa.ru/merchant/cash.php?m={$fk_id}&oa={$oa}&o={$o}&s={$sign}&us_login={$us_login}"); die(); ?>