The truth
is that while I read them from cover to cover, I never really needed to use them the same way I have my dogeared
book on design patterns. Like any idiot with a new piece of technology I made the mistake of trying to
use XML at every possible and often inappropriate opportunity. However, once over that initial burst of
enthusiasm I settled on using it in much more measured ways, such as, for example, using RSS feeds to
supplement a directory site with news from the websites of its listings.
This chapter will cover the use of various components of the Zend Framework that can be loosely lumped
together under the term ???web services???, which the World Wide Web Consortium (W3C) defines as ???a software
system designed to support interoperable machine-to-machine interaction over a network???. For the sake of
simplicity we will base our use of the term web services in this chapter on that definition rather than the more
specific W3C focus on it being a combination of SOAP and WSDL (Web Services Description Language).
Part of that interoperation includes the use of XML, hence my exploring the books mentioned above,
however one of the benefits of using these components is that we don??™t need to focus on XML itself. Zend
Framework provides a series of tools that take care of the formatting and protocol of the interaction, leaving
you the developer to focus on the logic using only PHP.
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