This guide shows how you can build an RSS feed reader application for the social network Facebook that will display your blog's/web site's RSS feed on the profile pages of Facebook users (that have installed the RSS feed reader application). Each item of the RSS feed will have a Share button so that people can share the story with their friends, and the application will have an Invite link so that people can invite up to ten friends at once to also install this feed reader application. I will use PHP5 to build the RSS feed reader application. To parse the RSS feed and generate HTML from it, I will use Magpie RSS.

MagpieRSS, affectionately known as Magpie, is an RSS and Atom parser for PHP. It allows you to display the newest articles from websites with RSS or Atom feeds on your own site. This is a great way to add new, fresh, and relevant information to your site. It parses RSS 0.9, RSS 1.0, and has some support for RSS 2.0 as well as Atom 0.3.