Core PHP Coding

Core PHP Programming (3rd Edition) (Core Series) by Leon Atkinson is the definitive work on PHP. The publishers say:

"Core PHP Programming, Third Edition is the authoritative guide to the brand-new PHP 5. Top PHP developer Leon Atkinson and PHP 5 contributor/Zend Engine 2 co-creator Zeev Suraski cover every facet of real-world PHP development, from basic syntax to state-of-the-art design patterns.

"It's all here: networking, data structures, regular expressions, math, configuration, graphics, MySQL/PostgreSQL support, XML, algorithms, debugging, and much more. Discover how to build enterprise-class applications that use PHP 5's breakthrough object-oriented features