Professional Web APIs with PHP. eBay, Google, PayPal, Amazon, FedEx, Plus Web Feeds

This chapter answered some basic questions about web services that should allow you to do the following:

• Explain what web services are and how they work

• See the value in utilizing web services in your own projects

• Convince others that it's definitely worth the effort to build and use web services

In the next chapter, you start working with web feeds, a simple but useful form of web services. As you progress through the book, you'll start getting into more complex uses of web services and eventually create your own web service APIs.