PHP WITH OOPS CONCEPT

Object-oriented programming is a programming model organized around Object rather than the actions and data rather than logic.

Class:

A class is an entity that determines how an object will behave and what the object will contain. In other words, it is a blueprint or a set of instruction to build a specific type of object.

In PHP, declare a class using the class keyword, followed by the name of the class and a set of curly braces ({}).

This is the blueprint of the construction work that is class, and the houses and apartments made by this blueprint are the objects.

Syntax to Create Class in PHP

<?php
class MyClass
	{
		// Class properties and methods go here
	}
?>

Important note:

In PHP, to see the contents of the class, use var_dump(). The var_dump() function is used to display the structured information (type and value) about one or more variables.

Syntax:

Object:

A class defines an individual instance of the data structure. We define a class once and then make many objects that belong to it. Objects are also known as an instance.

An object is something that can perform a set of related activities.

Syntax:

<?php
class MyClass
{
		// Class properties and methods go here
}
$obj = new MyClass;
var_dump($obj);
?>

Example of class and object:

<?php
class demo
{
		private $a= "hello javatpoint";
		public function display()
		{
		echo $this->a;
		}
}
$obj = new demo();
	$obj->display();
?>

Output:

Example 2: Use of var_dump($obj);

<?php
class demo
{
		private $a= "hello javatpoint";
		public function display()
		{
		echo $this->a;
		}
}
$obj = new demo();
	$obj->display();
	var_dump($obj);
?>

Output: