MySQL is intended for use as a beginning level programming book. It is not the goal of this book to cover
advanced techniques in the current versions of the PHP programming language. Some knowledge of general
programming concepts is expected but no actual programming experience or education is assumed.
All code examples in this book are compatible with PHP 7. Most examples are compatible with PHP 5.6.
The newest (as of the publication date) methods (functions) available in PHP have been used to provide
the reader with the most current coding techniques. The examples use core methods provided in the PHP
language. PHP includes many additional methods to accomplish similar tasks. The reader may, and should,
research additional ways of improving security, performance, and other techniques. It is the goal of this book
to prompt users to always consider using the most secure and efficient methods of program development.
The code in this book provides some examples of using these techniques. The user should remember that
no program is 100% secure. The programmer can only strive to make an application as secure as possible. It
takes a team of developers, network personnel, security