Training

PHP security guide - Guidance from the PHP Security Consortium on how to develop more secure applications.

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.

Implementing Bayesian inference using PHP - Paul Meagher introduces Bayesian inference by discussing the basic mathematical concepts involved and demonstrating how to implement the underlying conditional probability calculations using PHP.

Implement MySQL-based transactions with a new set of PHP extensions - This brief tutorial will show you how to use a PHP 5.x MySQL extension, called MySQL Improved, to implement MySQL-based transactions with PHP.

File and directory manipulation, part one - Dev Shed - PHP comes with a full-featured file and directory manipulation API that allows you (among other things) to view and modify file attributes, read and list directory contents, alter file permissions, retrieve file contents into a variety of native data structures, and search for files based on specific patterns. This file manipulation API is both powerful and flexible - two characteristics that will endear it to any developer whose ever had to work with file manipulation commands.

Using cookies in PHP - Website Publisher - Learn how to set and read cookies using the PHP scripting language.

Date and time handling in PHP - This tutorial explains date and time handling using PHP and MySQL.

Search engine-friendly URLs - Website Publisher - Article describes three ways to make your URLs search engine friendly using PHP.

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 and regular expressions 101 - WebReference - This tutorial steps through the POSIX-compliant regular expression functions in PHP in a straightforward manner.