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Writing Secure PHP, Part 4

The fourth part of the Writing Secure PHP series, covering cross-site scripting, cross-site request forgery and character encoding security issues.

Writing Secure PHP, Part 3

The third part of the Writing Secure PHP series, covering weak passwords, clients and more advanced topics.

Writing Secure PHP, Part 2

Learn how to improve your security a little further with the second part of this PHP tutorial.

Writing Secure PHP, Part 1

Learn how to avoid some of the most common mistakes in PHP, and so make your sites more secure.

The Box Model For Beginners

An explanation of what the box model is and how it is treated by different user agents.

Output Caching for Beginners

High-traffic sites can often benefit from caching of pages, to save processing of the same data over and over again. This caching tutorial runs through the basics of file caching in PHP.

CSS Selectors for Beginners

CSS Selectors allow you to specify the types and groups of elements you want to apply certain styles to.

PHP for Beginners

An introduction to PHP, one of the most popular programming languages on the web.