From:             vesko at webstudiobulgaria dot com
Operating system: Debian Lenny
PHP version:      5.3CVS-2008-05-09 (snap)
PHP Bug Type:     Scripting Engine problem
Bug description:  isset() does not checks correctly variable variable

Description:
------------
When giving variable variable argument to isset() it is not checking
correctly.
It was working property with the snap from 21 February (and of course
works correctly with php 5.2 branch).

Reproduce code:
---------------
<?
$var_name = 'unexisting';
if(isset($$var_name))
    {
    print $$var_name;
    }
?> 

Expected result:
----------------
//print nothing

Actual result:
--------------
Notice: Undefined variable: unexisting in /home/local/test/t3.php on line
5

-- 
Edit bug report at http://bugs.php.net/?id=44952&edit=1
-- 
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44952&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44952&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44952&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=44952&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=44952&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=44952&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=44952&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=44952&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=44952&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=44952&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=44952&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=44952&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=44952&r=globals
PHP 4 support discontinued:   http://bugs.php.net/fix.php?id=44952&r=php4
Daylight Savings:             http://bugs.php.net/fix.php?id=44952&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=44952&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=44952&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=44952&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=44952&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=44952&r=mysqlcfg