PHP Sessions Introduction [PHP Freaks]
PHP has a great set of functions that can achieve the same results of Cookies and more without storing information on the user's computer: PHP sessions. This is nearly 99% flawless in operation and it is virtually invisible to the user.
PHP Speed Differences (Insight to Injury)
A brief tutorial which examines a few simple ways to increase the efficiency of PHP code.
PHP Tutorial (BobFrank.org)
A basic PHP tutorial for beginners. It includes printing, variables, constants, math, strings, files, functions, arrays, and several other key points of PHP.
PHP Tutorial (by Martin Geisler)
This tutorial is aimed at users who have no previous experience with programming in PHP or any other programming language.
PHP Tutorial (Tizag)
A PHP tutorial that covers all the basics of PHP. It is geared towards web developers with little or no PHP experience.
PHP Virtual Guide
Video tutorials covering PHP from the basics to advanced techniques.
PHP/MySQL Tutorial (Webmonkey)
Three-part tutorial covers installation, basic scripts, forms, and advanced topics.
Pitfalls of Transactions with PHP (ONLamp)
Database transactions are important for data reliability and consistency. Used properly, they can prevent many types of errors. Used improperly, they can cause many other kinds of errors. Kimberlee Jensen demonstrates using transactions with PHP well.
PRCE: Perl Compatible Regular Expression In PHP
Article on perl compatible regular expressions. Describes the basics as well as PCRE's special features such as ungreedy matching, lookaheads or the evaluation modifier.
Programming PHP
A wikibook about programming in PHP. Also provides external links for more information.
Saving Resources with phpCache (Website Publisher)
Tutorial explains how to implement the phpCache script and use it to keep your database server load low.
Search Engine-Friendly URLs (Website Publisher)
Article describes three ways to make your URLs search engine friendly using PHP.
Serving XHTML with the correct mime type using PHP
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.
Simple Classes Introduction
By the end of this tutorial, you'll have a better understanding of what classes are and what they are good for. Classes can be very powerful when used right and can save you a lot of work (and typing) in the long run.
Simple Linear Regression With PHP
In contrast with other open source languages like Perl and Python, PHP lacks a robust community effort to develop a math library. This article provides an example of a PHP math library called SimpleLinearRegression that demonstrates a general approach that can be used to develop PHP math libraries.
SimplePHP
Windows Installation Guide for Apache + PHP + MySQL + PHPMyAdmin.
SQL Injection [Chris Shiflett: Security Corner]
Most Web applications interact with a database, and the data stored therein frequently originates from users. Thus, when creating an SQL statement, a developer may use client data in its construction. This article explains SQL injection by looking at a few example attacks and then introducing some simple and effective methods for prevention. By applying these best practices, you can practically eliminate SQL injection from your list of security concerns.
Static Free Energy (Zend)
This tutorial will show you how to produce static html pages using PHP. This is important if you want the benefits of using PHP to build sections of a site where the content of the pages doesn't change very often.
Template Example with PHP Includes
Show how to use 'php includes' inside a template.
Ten Security Checks for PHP (ONLamp)
Though it's easy to create sites in PHP, it's not immune to sloppy coding. Clancy Malcolm explains how to recognize and fix potential security holes.
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