PHP What is OOP?

OOP stands for Object-Oriented Programming. In PHP, as in many other programming languages, OOP is a programming paradigm that revolves around the concept of "objects".

Classes: Classes are the blueprints for objects. They define the properties (attributes) and behaviors (methods) that objects of that class will have. Objects: Objects are instances of classes. They are created based on the structure defined by the class and can have their own unique data and behaviors. Properties: Properties (also called attributes or member variables) are the variables that hold data within an object. They define the characteristics of the object. Methods: Methods (also called functions or member functions) are functions that are defined inside a class and can be called to perform certain actions or operations on the object's data. Inheritance: Inheritance is a mechanism that allows a class to inherit properties and methods from another class. This promotes code reusability and allows for creating a hierarchy of classes. Encapsulation: Encapsulation is the bundling of data and methods that operate on that data within a single unit (i.e., the class). It helps in hiding the internal state of an object and only exposes the necessary functionalities. Polymorphism: Polymorphism allows objects of different classes to be treated as objects of a common superclass. This allows for flexibility in programming and enables code to work with objects of multiple types.

Here's a brief overview of some key concepts in OOP PHP:

Example

<!DOCTYPE html>
class Car {
    // Properties
    public $brand;
    public $model;

    // Constructor
    public function __construct($brand, $model) {
        $this->brand = $brand;
        $this->model = $model;
    }

    // Method
    public function drive() {
        return "Driving {$this->brand} {$this->model}.";
    }
}

// Creating an object
$car = new Car("Toyota", "Corolla");

// Accessing properties
echo $car->brand; // Output: Toyota

// Calling methods
echo $car->drive(); // Output: Driving Toyota Corolla.
</html>

You can click on above box to edit the code and run again.