Step-by-step instructions for using PHP, a popular Web scripting language. Coverage progresses from first principles to a working knowledge of the PHP programming language, with chapters covering basic features of the language, functions and techniques, and library code. Chapter quizes and exercises are included. An understanding of the Web and of HTML is assumed, and some of the examples are written to work with SQL databases. Although no prior knowledge of programming is required, some experience with a language such as C or Perl is helpful.