Storing data from an array to a session

Ok, heres my question. i have a array thats calling my data from a mysql database and displaying it in a table
i want to make it so each new row in the table is a seperate form, and when add to cart is clicked the data from that row is added to a session, can anyone let me know the easiest way to do this

 while ($row= mysql_fetch_array ($result, MYSQL_ASSOC)){
                  
                  print "<tr bgcolor=\"#666666\">";
            print "<td>
                              <form method=\"post\" action=\"punk.php\">
                              $row[ProductID]
                              </td>";
            print "<td>$row[ProductArtist]</td>";
            print "<td>$row[ProductName]</td>";
            print "<td>$row[ProductType]</td>";
                print "<td>$row[ProductDescription]</td>";
            print "<td><img src=\"$row[ProductImage]\"></td>";
            print "<td>$$row[ProductCost]</td>";
                  print "<td>
                              <input type=\"submit\" name=\"addtocart\" value=\"Add To Cart\">
                              </form>
                           </td>";
            print "</tr>";
            }
            print "</table>";
        }

thats the end of my array and table, how can i make it so that data from the add to cart button is on is stored in a session to be displayed on another page.

any help is greatly appreciated

thx