PHP in a Nutshell
is a complete reference to the core of the language as well as the most popular PHP
extensions. This book doesn't try to compete with or replace the widely available online documentation. Instead, it is designed to provide depth and breadth that can't be found elsewhere. PHP
in a Nutshell
provides the maximum information density on PHP, without all the fluff and extras that get in the way. The topic grouping, tips, and examples in this book complement the online guide and make this an essential reference for every PHP
programmer. This book focuses on the functions commonly used by a majority of developers, so you can look up the information you need quickly.