<?php

class A {
	private $x;
	
	public function __construct($v) {
		$this->x = $v;
	}
	
	public function getIncrementor() {
		return function() { return ++$this->x; };
	}
}
class B extends A {
	private $x;
	public function __construct($v) {
		parent::__construct($v);
		$this->x = $v*2;
	}
}

$a = new B(-5);
$b = new B(10);

$ca = $a->getIncrementor();
var_dump($ca());

echo "Testing with scope given as object", "\n";

$cb = $ca->bindTo($b, $b);
$cb2 = Closure::bind($ca, $b, $b);
var_dump($cb());
var_dump($cb2());

echo "Testing with scope as string", "\n";

$cb = $ca->bindTo($b, 'B');
$cb2 = Closure::bind($ca, $b, 'B');
var_dump($cb());
var_dump($cb2());

$cb = $ca->bindTo($b, NULL);
var_dump($cb());

?>
