1.9. Objective Achieved

During the course of this chapter, we’ve come into object oriented theory, and discussed how it can be useful to associate a set of variables and functionality into one unit. We covered basic use of properties and methods, how to control visibility to different class elements, and looked at how we can create consistency between classes using inheritance and interfaces. Exception handling gives us an elegant way of dealing with any mishaps in our applications, and we also looked at magic methods for some very neat tricks to make development easier. At this point, we’re ready to go on and use object oriented interfaces in the extensions and libraries we work with in our day-to-day lives, as well as build our own libraries and applications this way.