The intention here is to demonstrate
the utility of Web Services through numerous practical demonstrations. Specifically, the
following topics are discussed:
Why Web Services? For the uninitiated, this section very briefly touches upon the
reasons for all of the work behind Web Services and how they change the landscape
of application development.
Really Simple Syndication: The originators of the World Wide Web had little idea
that their accomplishments in this area would lead to what is certainly one of the
greatest technological leaps in the history of humankind. However, the extraordinary
popularity of the medium caused the capabilities of the original mechanisms to
be stretched in ways never intended by their creators. As a result, new methods for
publishing information over the Web have emerged and are starting to have as great
an impact on the way we retrieve and review data as did their predecessors. One such
technology is known as Really Simple Syndication, or RSS. This section introduces
RSS and demonstrates how you can incorporate RSS feeds into your development
acumen using a great tool called MagpieRSS.
504 CHAPTER 20 ?– WEB SERVICES
SimpleXML: New to PHP 5, the SimpleXML extension offers a new and highly
practical methodology for parsing XML. This section introduces this new feature
and offers several practical examples demonstrating its powerful and intuitive
capabilities.
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