Over the past decade, PHP has transformed itself from a set of simple tools for web site development to a full-fledged object-oriented programming (OOP) language. PHP now rivals mainstream languages like Java and C# for web application development, with more and more enterprises turning to it to power their web sites. The reasons for this are clear: PHP has found the right combination of an easy-to-learn language and powerful features. In this book, you will learn how to make the most of your PHP programming, from a detailed understanding of OOP theory to frameworks and advanced system interoperability