[size=12.960000038147px]This book provides an introduction to PHP and server-side programming. It presents readers with a science or engineering background with the information to write their own online applications requiring reading, creating and manipulating data files stored as text on a server, overcoming the limitations of a client-side language. It focuses only on those elements of the language, such as file input/output, arrays, built-in math functions, and user-created functions that are essential for solving a wide range of scientific/engineering computing problems - and assumes a working knowledge of programming concepts and HTML, JavaScript, C or a similar language. It contains complete applications and hence offers a very compact and efficient way for working professionals to take advantage of the possibilities offered by server-side programming. Written for a technical audience, this book is an effective learning tool to the essentials of PHP and is also ideal for self-study.