Encapsulation in PHP It is a concept of wrapping up or binding up related data members and methods in a single module known as Encapsulation. 

Wrapping up data member and method together into a single unit is called Encapsulation

Example:

<?php
class Car {
    private $brand; // Private property
    public function getBrand() { return $this->brand; }
    public function setBrand($brand) { $this->brand = $brand; }
}

$car = new Car();
$car->setBrand("Toyota"); 
echo $car->getBrand();
?>

Output:

Toyota