Child Class Methods in OOP in PHP

A child class can have its own methods. As an example, let's add a getter and setter for the year of study to our student:

<?php
	class Student extends User {
		private $year;
		
		public function setYear($year) {
			$this->year = $year;
		}
		public function getYear() {
			return $this->year;
		}
	}
?>

In the child class, both its own methods and the inherited ones will be available. Let's test this. Create an object of the class:

<?php
	$student = new Student;
?>

Set its name using the inherited method, and the year of study using its own method:

<?php
	$student->setName('john');
	$student->setYear(1);
?>

Read its name and year of study:

<?php
	$name = $student->getName();
	$year = $student->getYear();
	
	echo $name . ' ' . $year;
?>

In the Employee class, create a getter and setter for the salary.

Check that in the Employee class both its own methods and the inherited ones work.