#41470 [Opn->Bgs]: referance assignment will cause unexpected side effect
| From: | johannes@php.net | Date: | Thu, 24 May 2007 05:57:08 +0000 |
| Subject: | #41470 [Opn->Bgs]: referance assignment will cause unexpected side effect | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-112975@lists.php.net to get a copy of this message | ||
ID: 41470
Updated by: johannes@php.net
Reported By: xiezhenye at gmail dot com
-Status: Open
+Status: Bogus
Bug Type: Scripting Engine problem
Operating System: any
PHP Version: 5.2.2
New Comment:
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
You shouldn't use multiple [in|de]crement operations on the same
opeartion. The result of that is undefined.
Previous Comments:
------------------------------------------------------------------------
[2007-05-23 09:19:02] xiezhenye at gmail dot com
Description:
------------
after a referance assignment, the result of the expression will be an
un expected value.
Reproduce code:
---------------
<?php
$a = 1;
$c = ++$a+$a++;
echo $c;
echo "\n";
$a = 1;
$b = &$a;
$c = ++$a+$a++;
echo $c;
?>
Expected result:
----------------
4
4
Actual result:
--------------
4
5
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=41470&edit=1