As mentioned by the Zend Developer Zone, there's a new tutorial over on the AnyExample.com website that shows how to get up and working with a PHP+Ajax connection in no time flat. The goal? To handle a file upload asynchronously from the user.

This article contains example application (trivial file-sharing service, like rapidshare, megaupload or yousendit) which uses embedded frames (IFRAME) to upload file. While file is uploaded to hidden frame, user can still access web-page and fill "file description" field.

They talk briefly about the PHP functions that will be used in the tutorial and the concept of using IFRAMEs to handle the content coming in (without reloading the page). The rest of the article is a code dump showing the pieces of (procedural) code to get the job done. There's some commenting, but if you're a new coder to PHP, you might want to check out the main PHP site for some more information on the functions used.