The PHP-GTK extension is a powerful solution for creating stand-alone GUI applications. It takes the benefits of programming with PHP and combines them with the visual capabilities of GTK (the GIMP Toolkit). The goal of this book is to get you started developing your own desktop applications with PHP-GTK. This book isn’t just a rehashing of PHP-GTK’s documentation. There is really no point in that. The documentation does a perfect job of providing an API reference. If you want to know the interface for a given method, then the online documentation is the best place for you. If, however, you want to know which is the best.