Professional PHP Development with Feeds and APIs will introduce the reader to feeds and APIs in general, and then take them step by step through real world examples. The examples and descriptions will take the user through each stage of the API process, from basic test implementations to integration with existing sites. Showing users how to produce and document their own APIs will also allow them to expand their own sites, and encourage them to take a deeper look at how they structure their code. The inclusion of XML-Feeds will also allow users to access one of the fastest growing trends on the web. Feed aggregators are being churned out at a rapid pace, while most dynamic sites are either beginning to offer, or expanding their current offerings of XML feeds.