Description:
------------
Hello,

First of all I would like to know if one day we will be able to unset $this into a class in order to destroy the object. It could really be useful to prevent big memory usage.

As it can't be done I tried to unset an object by unsetting a reference  of this object but it has no effect on the object but only on the reference.

Should unset destroy the reference itself and the object ???

if you don't think so can you think of something different to destroy both of them like I don't know, destroy($obejctsreference)

Regards.

Reproduce code:
---------------
<?

$x = new stdClass();
$x->a = 'ayayaye';

$b[0] =& $x;

unset($b[0]);

var_dump($x);

?>

Expected result:
----------------
NULL

Actual result:
--------------
object(stdClass)#1 (1) {
  ["a"]=>
  string(7) "ayayaye"
}