Professional PHP5 Security

* PHP is the most-widely used open source, server-side scripting language and is especially suited for Web development * This book guides readers through the vitally important job of securing a Web application, using an example that illustrates common security problems * Readers learn how sound programming techniques-such as authentication and authorization, session management, and input validation-can defend against security attacks on a PHP application * The companion Web site features an insecure PHP Web-mail program that demonstrates security problems and solutions