PHP: The Right Way
by Josh Lockhart
Publisher: phptherightway.com 2012
There's a lot of outdated information on the Web that leads new PHP users astray, propagating bad practices and bad code. This must stop. PHP: The Right Way is an easy-to-read, quick reference for PHP best practices, accepted coding standards, and links to authoritative tutorials around the Web.
Home page url
Download or read it online for free here:
by Giorgio Sironi
This practical testing book is aimed to all PHP developers. The book will help you grasp the fundamentals of TDD (Test-Driven Development) and its advantages: testable code, effective test suite and the good design that ensues.
by Adam Trachtenberg, David Sklar - O'Reilly Media
A collection of problems, solutions, and practical examples for PHP programmers. The book describes the best practices for everyday PHP programming dilemmas. It contains over 250 recipes, ranging from simple tasks to entire programs.
by Pádraic Brady
A free book about Zend Framework for the PHP programming language. This is a survival guide, boosting your understanding of the framework and how it all fits together by following the development of a single application from start to finish.
by Luis Atencio - Leanpub
I provide a practical approach to functional programming and show how it compares to other programming paradigms. The book is filled with examples that showcase functional concepts, plus using PHP in a ways you've probably never though it could.