#49962 [Com]: Reassign an object inside function

[diego at ditech dot com dot br]

 ID:               49962
 Comment by:       diego at ditech dot com dot br
 Reported By:      diego at ditech dot com dot br
 Status:           Open
 Bug Type:         Class/Object related
 Operating System: Windows XP SP3
 PHP Version:      5.2.11
 New Comment:

By the way, it is possible to change object attributes as if both were
passed by reference.

class foo {
  public $bar;
}

function change($obj) {
  $obj->bar = 1;
  $obj = null;
}

$o = new foo;
change($o);
var_dump($o);

The result of this is:
object(foo)#1 (1) {
  ["bar"] => int(1)
}


Previous Comments:
------------------------------------------------------------------------

[2009-10-22 18:16:18] diego at ditech dot com dot br

Description:
------------
When trying to reassign an object inside a function, it is not acting
as passed by reference.

Reproduce code:
---------------
<?php
class foo {
}

function change($obj) {
  $obj = null;
}

function change_ref(&$obj) {
  $obj = null;
}

$o = new foo;

change($o);
var_dump($o);

change_ref($o);
var_dump($o);

Expected result:
----------------
Both should yield the same result.

1st: NULL
2nd: NULL

Actual result:
--------------
Only change_ref is redefining the object.

1st: 
object(foo)#1 (0) {
}

2nd: NULL


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=49962&edit=1