Classes and objects are powerful OOP concepts - and PHP4 supportsthem too. This article explains some basic OO entities (including classes,constructors and extensibility) with examples of a table builder and aguestbook.
If you've been programming for a while, you've probably heard the term OOP before - it stands for Object-Oriented Programming, and refers to a technique in which you create program "objects" and then use these objects to build the functionality you need into your program. And maybe you've wondered just how useful this is, and how you could go about adding this capability to your own code.
Well, wonder no more. Your prayers have been answered.
Over the next few pages, this article is going to take a look at OOP in PHP4, with an explanation of PHP4 classes and a few examples of how you could use them.