joshlittlewood

hello, so i've been developing this website ( http://www.ultimate-dimension.co.uk/NewRAL/store1.php ) for a while now, and the owner wanted a shopping cart implemented. However another coder began the coding of this shopping cart. The cart works perfectly besides that fact that after the Paypal payment as been made I cannot make the system redirect the user to a page where they can download the files that they have ordered. Here is the shopping cart code... <?php session_start(); $page = 'store1.php'; if (isset($_GET['add'])) { $quantity = mysql_query('SELECT id, quantity FROM filesTable WHERE id='.mysql_real_escape_string((int)$_GET['add'])); while ($quantity_row = mysql_fetch_assoc($quantity)) { if ($quantity_row['quantity']!=$_SESSION['cart_'.(int)$_GET['add']]) { $_SESSION['cart_'.(int)$_GET['add']]+='1'; } } header('location:'.$page); } if (isset($_GET['remove'])) { $_SESSION['cart_'.(int)$_GET['remove']]--; header('location:'.$page); } if (isset($_GET['delete'])) { $_SESSION['cart_'.(int)$_GET['delete']]='0'; header('location:'.$page); } function products() { $get = mysql_query('SELECT id, name, description, price, shipping FROM filesTable WHERE quantity > 0 ORDER BY id DESC'); if (mysql_num_rows($get)==0) { echo "There are no products to display :/"; } else { while ($get_row = mysql_fetch_assoc($get)) { echo '<p>'.$get_row['name'].'<br />'.$get_row['description'].'<br /> &pound'.number_format($get_row['price'], 2).' <br /> <a href="cart.php?add='.$get_row['id'].'">ADD</a></p> <br /><hr><br />'; } } } function paypal_items() { $num==0; foreach ($_SESSION as $name => $value) { if ($value!=0) { if (substr($name, 0, 5)=='cart_') { $id = substr($name, 5, strlen($name)-5); $get = mysql_query('SELECT id, name, price, shipping FROM filesTable WHERE id='.mysql_real_escape_string((int)$id)); while ($get_row = mysql_fetch_assoc($get)) { $num++; echo '<input type="hidden" name="item_number_'.$num.'" value="'.$id.'">'; echo '<input type="hidden" name="item_name_'.$num.'" value="'.$get_row['name'].'">'; echo '<input type="hidden" name="amount_'.$num.'" value="'.$get_row['price'].'">'; echo '<input type="hidden" name="shipping_'.$num.'" value="'.$get_row['shipping'].'">'; echo '<input type="hidden" name="shipping2_'.$num.'" value="'.$get_row['shipping'].'">'; echo '<input type="hidden" name="quantity_'.$num.'" value="'.$value.'">'; } } } } } function cart() { foreach ($_SESSION as $name => $value) { if ($value>0) { if (substr($name, 0, 5)=='cart_') { $id = substr($name, 5, (strlen($name)-5)); $get = mysql_query('SELECT id, name, description, price, shipping FROM filesTable WHERE id='.mysql_real_escape_string((int)$id)); while ($get_row = mysql_fetch_assoc($get)) { $sub = $get_row['price']*$value; echo $get_row['name'].' x '.$value.' @ &pound'.number_format($get_row['price'], 2).' = &pound'.number_format($sub, 2).' <a href="cart.php?remove='.$id.'">[ - ]</a> <a href="cart.php?add='.$id.'">[ + ]</a> <a href="cart.php?delete='.$id.'">[ DELETE ]</a> <br><br>'; } } $total += $sub; } } if ($total==0) { echo "Your cart is empty :/"; } else { echo '<br><p class="rightAlignCart">Total: £'.number_format($total, 2).'</p>'; ?> <p> <form class="rightAlignCart" action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_cart"> <input type="hidden" name="upload" value="1"> <input type="hidden" name="business" value="joshlittlewood@ultimate-dimension.co.uk"> <?php paypal_items(); ?> <input type="hidden" name="currency_code" value="GBP"> <input type="hidden" name="amount" value="<?php echo $total; ?>"> <input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but06.gif" name="submit" alt="Make payments with PayPal - it's fast, free and secure!"> </form> </p> <?php } } ?> By the way the store is running in sandbox mode, for anyone who wants to try it. I believe that Paypal's IPN is the way to do it, but I just can't get it to work with the current shopping cart system. Any help on how do do this would be greatly appreciated!