Bug #65831 [Opn->Nab]: Referenced variables override value of a reference-variable to an object
| From: | nikic@php.net | Date: | Fri, 04 Oct 2013 14:38:59 +0000 |
| Subject: | Bug #65831 [Opn->Nab]: Referenced variables override value of a reference-variable to an object | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-182031@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=65831&edit=1
ID: 65831
Updated by: nikic@php.net
Reported by: mz dot evgeny at gmail dot com
Summary: Referenced variables override value of a
reference-variable to an object
-Status: Open
+Status: Not a bug
Type: Bug
Package: Variables related
Operating System: Any
PHP Version: 5.5.5RC1
Block user comment: N
Private report: N
New Comment:
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system
is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
If you assign to a reference, of course that will modify that reference (that's the point of
using a reference after all...). If you want to create a new reference using the same variable you
need to use =& assignment ($ref =& $obj).
Previous Comments:
------------------------------------------------------------------------
[2013-10-04 14:33:29] mz dot evgeny at gmail dot com
Description:
------------
This happens when I try to re-use a variable that was used to hold a reference to another variable
for holding an object reference.
If I remove the second line or use unset, it works as expected. But AFAIK it's not required to
unset variables before assigning it a new value.
Test script:
---------------
$num = 123;
$ref = &$num;
$obj = new stdClass();
$ref = $obj;
$num = 321;
var_dump($ref);
Expected result:
----------------
class stdClass#1 (0) {
}
Actual result:
--------------
int(321)
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=65831&edit=1