PHP - Simple add item to cart and display results

[MissMusic]

I want to use sessions to count how many items are added to the cart. Below I have a submit button that pulls product_id from database along with title and description:\[code\]$query = 'SELECT * FROM products ORDER BY date_added DESC'; // Run the query: if($r = mysql_query($query,$dbc)) { while ($row = mysql_fetch_array($r)) { // Print out the returned results: print "<p><h3>{$row['title']}</h3> {$row['description']}<br /> <form action='add_to_cart.php' method='get'> <input type='hidden' name='add2cart' value='http://stackoverflow.com/questions/10543557/{$row['product_id']}' /> <input type='submit' value='http://stackoverflow.com/questions/10543557/Add to Cart' /> </form> </p><hr />\n"; } }\[/code\]How do I turn the below into a session to handle my form when add to cart button is submitted. This script I created just counts the cookie every time the page is called or refreshed so it is not accurate. I want to send unique product id and add item to cart using sessions so the items in cart only go up when the add to cart button is clicked.\[code\]<?phpif(!isset($_COOKIE['countItems'])){ $Items = 0; setcookie('countItems', $Items); }else{ $Items = ++$_COOKIE['countItems']; setcookie("countItems", $Items);} define('TITLE' , 'Items in cart'); include('templates/header.html');?><div id="main"><?phprequire_once('config.php');$dbc = mysql_connect(DB_HOST , DB_USER , DB_PASSWORD);mysql_select_db(DB_DATABASE, $dbc);if(isset($_COOKIE['countItems'])){ print "<p>You have $Items items in your shopping cart </p>"; print "<p><a href='http://stackoverflow.com/questions/10543557/store.php'>Continue Shopping</a></p>";} else{ print "You have not added any items into your cart.";} ?> \[/code\]I just need it to output what you see, it doesn't need to be a itemized or anything, just needs to count how many items are in cart and what there ids are.