View file mod/result.php

<?php
include_once($_SERVER["DOCUMENT_ROOT"]."/inc/db.php");
include_once($_SERVER["DOCUMENT_ROOT"]."/inc/function.php");

if (isset($_POST['id_shop']) && is_numeric($_POST['id_shop']) && isset($_POST['id_bill']) && is_numeric($_POST['id_bill']) && isset($_POST['summa']) && is_numeric($_POST['summa']) && isset($_POST['hash']))
	{
	$sql=mysql_query("SELECT * FROM `rek` WHERE `num` = '".$_POST['id_bill']."'");
	if (mysql_num_rows($sql)>0)
		{
		$data=mysql_fetch_assoc($sql);
		if ($_POST['summa']<$data['sum'])
			{
			}
			elseif($_POST['hash']!=md5($hash.$id_shop.$_POST['id_bill'].$_POST['summa']))
			{
			}
			else
			{
 mysql_query("UPDATE `rek` SET `clicks` = `clicks` + `ok` WHERE `id` = '".$data['id']."'");
			}
		}
	}
?>