paypal buy now button and shipping address

I want to setup a simple shopping cart using PHP, only 2 items, I am planning to use paypal开发者_StackOverflow中文版 buynow button for this, but what about the shipping address details ?, should I collect those details from my site or paypal has such an option so that users can enter shipping address ?

Thank you

I assume you will be using Paypal's Website Payment Standard for payment.

This service supports insertion of HTML variables (e.g.: address1, address2, country, etc.), to automatically populate Paypal's Checkout pages.