In a new article from PHPBuilder.com today, they continue the series An Introduction to Web Services (Part 2).

At the end of my last article, we had SOAP running with PHP and were using Google as a glorified spell-checker. Seeing as it is rather well known as a search engine, this week we'll look into conducting web searches in a bit more detail. We'll also talk about how to deal with any errors that occur.

Building on the foundation of this article, he improves his interface with the Google API to allow for a search with any given term. He follows that up with information on error handling in the script as well as the inclusion of "restricts" on your searches - allowing you to only search from a subset of the Google database.