This concluding article in the series illustrates PHP's file functions, with examples of how to read and write files on the system. It also includes an explanation of user-defined functions, return values and function arguments, together with some not-so-real-life examples.

PHP4 comes with a bunch of new functions designed to allow FTP connections over the Web. This article explores the new FTP functions, together with an example of how they can be used to build a browser-based FTP client.