Introduction to XSS and CSRF
Cross-Site Request Forgery in Action
"Harmless" Fun With SQL Injection
All Your Session Are Belong to Us
All Your Session Are Still Belong to Us
Configuration Security
Configuration Security (Part 2)
Hacking with Google
Performance Article
Introduction to PDO
The Need For Speed - Optimizing your PHP Applications.
Session Paranoia - Protecting data from snoopers and session hijackers.
Introduction to SQLite (PHP5)
Four, oh Four!
cURL Magic without cURL
Spell checking with PHP
The PHP 5 Data Object
PHP 5 & XML
Bug Elimination 101 - In depth article on debugging PHP applications.
Got Boost - Detailed comparison of various PHP acceleration packages.