PHP function to load AJAX based pages(repost)

I need a PHP function that when given a page number it loads the AJAX based product list page from the following site: [login to view URL] You can see when you go to the URL you will get the first product list page, if you want to see the next you click on 'next' then the next product list page will show. I need the function when given the page number it will load the product list of that page. I want the function when called with the page number, it returns the products data as a string. Please note that: I do not want something similar to the above link. What I want is to scrab data from that website, so I want to go over all products in all pages, currently the website is using AJAX for users to navigate through the site ... I want the PHP function to call the AJAX function and get the data beyond it.