Image_GIS is a PEAR package for PHP that allows you to add digital maps to Web sites using free downloadable GIS files. Learn how to use the Image_GIS package to add mapping functionality to a Web site.

Phillip Perkins outlines the advantages of using XSLT, which includes the fact that you aren't restricting your data to one particular layout.

Describes how to send XHTML with the correct mime type safely using PHP. Includes the ability to "fall back" to HTML if the viewing web-browser does not support XHTML.

PHP and GIMP tutorials.

Article describes three ways to make your URLs search engine friendly using PHP.

Provides detailed, step-by-step information on compiling PHP as an Apache 2.0 shared module on a Linux system.

A tutorial on using RRDTool's PHP extensions to gather data, report statistics, and generate graphs.

Conditional probability -- the probability of observing one event as a result of having observed another event -- is a potentially important factor in designing intelligent Web applications. Paul Meagher introduces Bayesian inference by discussing the...

Tutorial explains how to implement the phpCache script and use it to keep your database server load low.

Learn how to set and read cookies using the PHP scripting language.