PHP | ReflectionParameter getDeclaringClass() Function

<?php

// Initializing a user-defined class Company1
class Company1
{
    public function GFG($Parameter){}
}

// Initializing a subclass Company2
class Company2 extends Company1
{
}

// Using the ReflectionParameter over the above class
$A = new ReflectionParameter(['Company2', 'GFG'], 0); 

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

// Getting the specified declaring class
var_dump($B);
?>

<?php

// Initializing some user-defined classes
class Department1
{
    public function HR($Parameter1){}
}
class Department2
{
    public function Coding($Parameter2, $Parameter3){}
}
class Department3
{
    public function Marketing($Parameter4, $Parameter5, $Parameter6){}
}

// Using the ReflectionParameter over the above classes
$A = new ReflectionParameter(['Department1', 'HR'], 0);
$B = new ReflectionParameter(['Department2', 'Coding'], 1);
$C = new ReflectionParameter(['Department3', 'Marketing'], 2);

// Calling the getDeclaringClass() function and
// getting the specified declaring classes
var_dump($A->getDeclaringClass());
var_dump($B->getDeclaringClass());
var_dump($C->getDeclaringClass());
?>