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IBM developerWorks:
Developing PHP the Ajax way, Part 1 - Getting started
June 01, 2006 @ 06:44:56

IBM developerWorks has posted this new tutorial, the first part in a two-part series looking at the development of a PHP/Ajax application using Saxjax.

Asynchronous JavaScript and XML (Ajax), is arguably the most popular new Web technology. In this two-part "Developing PHP the Ajax way" series, you will create a simple photo album as an online Web application, entirely in PHP and the Simple Ajax Toolkit (Sajax). You'll begin by writing a simple photo album using the standard method of PHP development and later apply Sajax to make it an active Web application.

There's no hesitation on their part - they just jump right in and start in with the image pager class to handle the display of a number of images at a time. The files are stored in a directory on the local filesystem (as they should be) and pulling them in is just a matter of reading the directory. They integrate in basic back/forward and the ability to enlarge the images and the basic gallery is complete.

Now, it's time for the fun stuff - they take the processing that the PHP script was doing to grab the files/display them/etc and move it to the backend, replacing it with a simple Ajax call to another PHP file to grab the image information to display. They even finish off this part of the series with a method for implementing metadata for the images, an XML file with a summary of the file's attributes, date taken - anything you want, really.

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