PHP | ReflectionMethod getPrototype() Function

<?php
 
// Initializing a user-defined class Department1
class Department1 {
 
    public function Marketing_Dpt() {
        return 'Department1';
    }
}
 
// Initializing a subclass of the above class Department1
class Department2 extends Department1{
 
    public function Marketing_Dpt() {
        return 'Department2';
    }
 
}

// Again Initializing a subclass of the above subclass Department2
class Department3 extends Department2{
 
    public function Coding_Dpt() {
        return 'Department3';
    }
 
}
 
// Using the ReflectionMethod() over the above 
// subclass Department2
$A = new ReflectionMethod('Department3', 'Marketing_Dpt');
 
// Calling the getPrototype() function
$B = $A->getPrototype();
 
// Getting the prototype 
var_dump($B);
?>

<?php

// Initializing a user-defined class
class Company {

    protected function GeeksforGeeks($name) {
        return 'GFG' . $name;
    }
}

// Using ReflectionMethod() over the class Company
$A = new ReflectionMethod('Company', 'GeeksforGeeks');

// Calling the getPrototype() function
$B = $A->getPrototype();

// Getting the prototype or an error is returned
// if the method does not have a prototype.
var_dump($B);
?>