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Bug #34039 ISSET behaviour changes between 4.x and 5.x with variables variable.
Submitted: 2005-08-08 17:26 UTC Modified: 2005-08-16 01:00 UTC
Votes:1
Avg. Score:4.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: epommier at lfdj dot com Assigned:
Status: No Feedback Package: Scripting Engine problem
PHP Version: 5.0.4 OS: Sun OS
Private report: No CVE-ID: None
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From: epommier at lfdj dot com
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 [2005-08-08 17:26 UTC] epommier at lfdj dot com 
Description:
------------
When testing if a variable variable, which is not set, is set the result is different between 4.x and 5.x.
PHP 5.x should behave as PHP 4.x.
We didn't find any bug related to this description.
Best regards.

Reproduce code:
---------------
unset($var_tmp);
$var = "var_tmp";
if(isset($$var))
	echo "var_tmp is set.";
else
	echo "var_tmp is not set.";

Expected result:
----------------
var_tmp is not set.

Actual result:
--------------
var_tmp is set.

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 [2005-08-08 18:38 UTC] tony2001@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5-win32-latest.zip

Can't reproduce with latest 5.0 and 5.1.
 [2005-08-16 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
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