PHP for the World Wide Web: covers versions 3 and 4
by Larry Ullman
ISBN: 0201727870

"PHP for the Word Wide Web is a well-presented introduction to this popular server-side scripting language. Aimed at beginners, the 14 chapters cover programming basics such as using variables, performing numeric calculations, creating user-defined functions and reading or writing to files."
 

PHP Advanced for the World Wide Web: Visual QuickPro Guide
by Larry Ullman
ISBN: 0201775972

"An intermediate-to-advanced users guide to PHP, the Web scripting language in use on over six million Web sites. Excellent companion book to the PHP Visual QuickStart Guide. Focuses specifically on real-life PHP projects, as determined by frequent PHP questions asked in newsgroups, emails, chat rooms, and Web sites."
 

PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide
by Larry Ullman
ISBN: 0321336577

"With step-by-step instructions, complete scripts, and expert tips to guide readers, veteran author and database designer Larry Ullman gets right down to business: After grounding readers with separate discussions of first the scripting language (PHP) and then the database program (MySQL), he goes on to cover security, sessions and cookies, and using additional Web tools, with several sections devoted to creating sample applications. This guide is indispensable for Web designers who want to replace their static sites with something more dynamic."
 

Professional PHP4 Web Development Solutions
by Luis Argerich, Jon Stephens, Alison Gianotto, Raj Dash, Matt Anton, Bryan Waters, Jo Henrick
ISBN: 1861007434

"This book is positioned to fill the "solutions" gap left behind by the theoretical offerings of the multitude of PHP books in the market. The intent is to extend the real world conversation started in those books,as well as to offer solid web application design techniques and solutions using PHP, databases, and markup languages.We assume that readers picking up this book have beginner to intermediate PHP quotient ."

PHP Cookbook
by Sklar & Trachtenberg
ISBN: 1565926811

"The PHP Cookbook is a collection of problems, solutions, and practical examples for PHP programmers. The book contains a unique and extensive collection of best practices for everyday PHP programming dilemmas. For every problem addressed in the book, there's a worked-out solution or "recipe" -- short, focused pieces of code that you can insert directly into your applications. But this book offers more than cut-and-paste code. You also get explanations of how and why the code works, so you can learn to adapt the problem-solving techniques to similar situations. The recipes in the PHP Cookbook range from simple tasks, such as sending a database query and fetching URLs, to entire programs that demonstrate complex tasks, such as printing HTML tables and generating bar charts. This book contains over 250 recipes -- a treasure trove of useful code for PHP programmers, from novices to advanced practitioners..."