This book, written for beginners and old hands alike, is designed to approach the development of PHP applications in a new way. It focuses on the tips and tricks of development, not necessarily the particular code snippets that make up a software application. It is designed to be used as a reference guide, rather than as a novel or other technical book. It does not build on itself; each chapter stands alone, though taken together they form a complete understanding of modern development in the PHP economy.