In Part 3 of this series on developing efficient PHP code in real-world situations, Amol Hatwar discusses how to build the most efficiently functional functions, functions you can use without sacrificing too much performance or manageability. The author focuses on writing reusable functions and covers how to avoid the most common problems associated with this task.

The series Develop rock-solid code in PHP is about solving practical, real-life problems in medium- to large-scale applications. In this article, PHP veteran Amol Hatwar discusses how to use variables effectively. He also shows how to make script configuration easy by constructing a configuration file parser using variable variable names in PHP.

The Develop rock-solid code in PHP series is about solving practical real-life problems in medium- to large-scale applications. With a sharp focus on new features available in PHP 4, the articles shed light on numerous tips and tricks that make life easier. Inside, you will find plenty of examples and techniques to learn, with lots of sample code. In this first article, PHP veteran Amol Hatwar gives a higher perspective for designing and writing bug-free, maintainable code for medium- to large-scale Web applications.