Object-Oriented Programming
One of the key features of object-oriented programming (OOP) is the ability to create new data types in which the data and the implementation of operations are bound together. You create classes that contain the data representing the properties of a particular item, as well as the set of operations that can be performed on it. In addition, most languagesincluding PHPprovide mechanisms to customize and extend your objects so that you can create new variations on the types and share common code within them.