Chapter 8. Object-Oriented PHP

Before PHP 5 came along, object-oriented programming (OOP) support in PHP was more of a hack than a serious attempt. As a result, the few who used it often regretted the choice, and it is not surprising that the whole system got a full rewrite in PHP 5. It is now much more advanced and flexible and should please just about everyone.

If you have used OOP in PHP 4, I strongly recommend you read this entire chapter from start to finishOOP has been massively redesigned in PHP 5 and is much more functional and feature-rich now.