PHP Pointer Class

Pointer.php

<?php

class Pointer {
    
    private $obj;
    
    public function __construct( & $anything) {
        $this->obj = & $anything;
    }
    
    public function & get() {
        return $this->obj;
    }
}

// Sample usage
$v1 = 'a';
$p1 = new Pointer($v1);

echo $p1->get(); // Output: 'a'

$v1 = 'b';
echo $p1->get(); // Output: 'b'

$same_val = & $p1->get();
$v1 = 'c';

echo $same_val; // Output: 'c'

$same_val = 'd';
echo $v1; // Output: 'd'

$p2 = new Pointer($same_val);

$v1 = 'e';
echo $p1->get(); // Output: 'e'
echo $p2->get(); // Output: 'e'

$same_val = 'f';
echo $p1->get(); // Output: 'f'
echo $p2->get(); // Output: 'f'