 DownloadOOP Concepts in PHP:
Object-oriented programming: Object-oriented programming (OOP) is a programming model that uses objects and their
interactions to design a computer programs.
Objects: Objects are basic building blocks of a PHP OOP program. An object is a combination of data and methods.
In a OOP program, we create objects. These objects communicate together through methods.
Each object can receive messages, send messages, and process data.
There are two steps in creating an object.
Class : A class is a template for an object. It is a blueprint which describes the state and behavior that the objects of the class all share.
A class can be used to create many objects.
Objects created at runtime from a class are called instances of that particular class.
The basic programming concepts in OOP are:
1. Abstraction: Abstraction is hiding the information or providing only necessary details to the client.
Abstraction means hidden or abstracted implementation details. We use interface or abstract class for this.
2. Polymorphism: The process of using an operator or function in different ways for different data input.
3. Encapsulation: Wraping up member variables and member functions together into a single unit(ie.Class);
4. Inheritance: When a class acquire the property of another class is known as inheritance.
Polymorphism can be achived by two ways:
1. Method Overloading: Multiple methods with same name but different parameters in a class.
2. Method Overriding: Creating same method to child class.
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