PHPBuilder.com has continued their "PHP Developer's Primer" series covering the various uses of XML in PHP with this new tutorial, part two of their "XML-RPC, PHP, and Javascript" coverage.

Continuing with the code developed in part one, they work on creating the PHP server side of things, showing the code to respond to the connections, validate the email address sent, and how to use Javascript to make a connection and call the server.

By the end, you'll have a set of scripts that can ship off an email address to be validated on the server-side with the help of some handy Javascript and a simple backend connection.