Using The Google Web APIs With PHP - The Bare Necessities (
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There are a couple
of things you'll need before you can get started with PHP and the Google Web
APIs. Obviously, you need a working build of PHP - I recommend the latest
version, PHP 4.2.1, which you can download from
http://www.php.net/You'll also need an
external PHP class named NuSOAP, which exposes a number of methods that can be
used to instantiate a SOAP client and perform SOAP transactions over HTTP. You
can download NuSOAP from
http://dietrich.ganx4.com/.
You
also have the option of using the PEAR (the PHP Extension and Application
Repository) SOAP class instead of the NuSOAP class, which exposes much of the
same functionality. You can get this class from the PHP CVS repository, at
http://cvs.php.net/.
In case you're
wondering, I've used both the NuSOAP class and the PEAR class to build the
examples in this tutorial.
Finally, you need a passport to the Google
kingdom. Drop by
http://www.google.com/apis/, register
with Google (all you need is an email address), and pick up your free Google
license key. This license key will be used in all your interaction with the
Google database, so keep it carefully - you're going to need it very
soon.
While you're on the Google site, you might also want to download
the Google Web API developer kit, which contains numerous examples of how the
Web APIs can be used on the Java and .NET platforms. It doesn't have anything on
PHP yet - but hey, that's why you're reading this article, isn't it?
All
set up? Let's rock and roll.
