Cast generic type parameter to a specific type in PHP

<?php
// PHP program to show
// standard type casting

$a = 1;
var_dump($a);

// int to float
$a = (float) $a;
var_dump($a);

// float to double
$a = (double) $a;
var_dump($a);

// double to real
$a = (real) $a;
var_dump($a);

// real to int
$a = (int) $a;
var_dump($a);

// int to integer
$a = (integer) $a;
var_dump($a);

// integer to bool
$a = (bool) $a;
var_dump($a);

// bool to boolean
$a = (boolean) $a;
var_dump($a);

// boolean to string
$a = (string) $a;
var_dump($a);

// string to array
$a = (array) $a;
var_dump($a);

// array to object
$a = (object) $a;
var_dump($a);

// object to unset/NULL
$a = (unset) $a;
var_dump($a);

?>

<?php
// PHP program to convert an class object
// to object of another class

// Original class
class Geeks1 {
	
	var $a = 'geeksforgeeks';
	
	function print_geeksforgeeks() {
		print('geeksforgeeks');
	}
}

// Final class
class Geeks2 {

	// Constructor function of class Geeks2
	public function __construct($object) {

		// Initializing class properties
		foreach($object as $property => $value) {
			$this->$property = $value;
		}
	}
}

// Initializing an object of class Geeks1
$object1 = new Geeks1();

// Printing original object of class Geeks1
print_r($object1);

// Initializing an object of class Geeks2
// using an object of class Geeks1
$object1 = new Geeks2($object1);

// Printing object of class Geeks2
print_r($object1);

?>