The PHP scripting language works beautifully with other open source tools, such as the MySQL database and Apache web server software, to build interactive web applications. But security is still an issue that developers need to address, given the frequency of attacks on web sites. Essential PHP Security explains the types of attacks that hackers use on web sites and how to correctly configure Apache and PHP to guard against them. The author of Essential PHP Security, Chris Shiflett, is an internationally recognized expert in the field of PHP security and this book shows developers how to guard against attacks by writing secure PHP code.