Is PHP Object-oriented?

Question

Is PHP an object-oriented language? If not, then what about the framework CakePHP? Is it an object-oriented MVC implementation of PHP?

Also, can a PHP application wholly

Answer 1

Object-Oriented technology is often described in terms of encapsulation, polymorphism, and inheritance. But these are only identity. If object-oriented technology is to be successfully it must emphasis on the object.

objects -- packet containing data and procedures

methods -- deliver service

message -- request to execute a method

class -- template for creating objects

instance -- an object that belongs to a class

encapsulation -- information hiding supported by objects

inheritance -- mechanism allowing the reuse of class specifications

class hierarchy -- tree structure representing inheritance relations

polymorphism -- to hide different implementations behind a common interface

[Alan Kays][4]["Considered by some to be the father of object-oriented programming"] Defination:

1. EverythingIsAnObject.

2. Objects communicate by sending and receiving messages (in terms of objects).

3. Objects have their own memory (in terms of objects).

4. Every object is an instance of a class (which must be an object).

5. The class holds the shared behavior for its instances (in the form of objects in a program list)

An object is defined by a triple (OID, type constructor, state) where OID is the unique object identifier, type constructor is its type (such as atom, tuple, set, list, array, bag, etc.) and state is its actual value.

Now clearly it can be seen Java,C++ and PHP violates rule 1?Why bcoz int, float etc. (there are a total of eight primitive types). so it cannot be Object oriented in strict sense but some folk's considered it as OOP.