call by reference example

gistfile1

<?php

class A {
	function callByRef(&$var) {
		$var->foo = 'bar';
		$var = new stdclass;
		$var->baz = 'bat';
	}

	function callOnObject($var) {
		$var->foo = 'bar';
		$var = new stdclass;
		$var->baz = 'bat';
	}
}

$a = new A;
$b = new stdclass;
$c = new stdclass;
$a->callByRef($b);
var_dump($b);
$a->callOnObject($c);
var_dump($c);