Integration Guide

The PayPal Shopping Cart – Add to Cart and View Cart Buttons
Sample HTML Code for Add to Cart Buttons
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288 June 2012 PayPal Payments Standard Integration Guide
Product options with prices specify the prices in two places:
 The dropdown menu displays the prices for each option – buyers see the prices they pay for
each option.
 A list of hidden HTML variables repeats the prices for each option – PayPal uses these
prices to charge buyers for the options they choose.
Dropdown menus with option prices use the following variables:
 currency_code – sets the currency for option prices
 item_index – identifies which dropdown menu of product option has prices
 option_select* and option_amount* – repeats the prices for each option
NOTE: You cannot specify item IDs for production options with prices to have PayPal track
inventory for your item. PayPal can track inventory by product option only for buttons
that you save in your PayPal account.
<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr"
method="post">
<!-- Identify your business so that you can collect the payments. -->
<input type="hidden" name="business" value="[e-mail]">
<!-- Specify an Add to Cart button. -->
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="add" value="1">
<!-- Specify details about the item that buyers will purchase. -->
<input type="hidden" name="item_name"
value="Birthday - Cake and Candle">
<input type="hidden" name="currency_code" value="USD">
<!-- Provide a dropdown menu option field. -->
<input type="hidden" name="on0" value="Color">Color scheme <br />
<select name="os0">
<option
value="Select a color scheme">
-- Select a color scheme --</option>
<option value="Blue">Blue</option>
<option value="Pink">Pink</option>
<option value="Yellow">Yellow</option>
</select> <br />
<!-- Provide a dropdown menu option field with prices. -->
<input type="hidden" name="on1" value="Size">Size <br />
<select name="os1">
<option
value="Select a size">-- Select a size --</option>
<option value="2x4">2 x 4 - $3.95 USD</option>
<option value="3x5">3 x 5 - $4.95 USD</option>