From:             dino2150 at poczta dot fm
Operating system: Win XP64
PHP version:      5.4Git-2012-10-27 (snap)
Package:          Session related
Bug Type:         Bug
Bug description:Pointer to the session dosnt work properly

Description:
------------
What I'm actually trying to do is to create pointer to session.
Ok. Piece of cake.
STEP:1
----------------
session_start();
$a = &$_SESSION;
$a[5] = 555;

 -> RUN THE SCRIPT NOW;
back to edit:

session_start();
$a = &$_SESSION;
$a[5] = 555;
print_r($_SESSION);

this echoes correctly ;) 

STEP:2
-----------------
Let's try to zero-memory session data.

session_start();
$a = &$_SESSION;
$_SESSION=NULL; 
$a[5] = 55;
$_SESSION['abc']=555;
print_r($_SESSION);

At this point $_SESSION contains two elements.
No wonder, right?  Yea..right...

Now back to edit:

session_start();
print_r($_SESSION);

At this point session contains only ONE element?
WTF happend to the $_SESSION[5]=55; it was there before... 

My first shot was to unset session data with session_unset so i repleaced 
SESSION=NULL with session_unset(). This gives me the same effect.

I also took a chance with session_destroy ;)  but then the SESSION table
was empty (and that makes perfecly sense).

However its hard to understand why $_SESSION table is saved partialy and
not including values setted by $_SESSION reference, and WHY THIS ONLY
HAPPEND WHEN I DO SOMETHING WITH THIS TABLE to erase it ;P

Test script:
---------------
TEST SCIRPT IS PART OF DESCRIPTION.

Expected result:
----------------
All variables setted by SESSION reference after calling session_unset() are
expected to stay in SESSION.

So:
    first i make session ref: $a = &$_SESSION;
    then i zero-memory session by session_unset();
    then i set something to session by ref.  $a[5]=55;
    and i expected this to stay in session.

Actual result:
--------------
If i use session_unset() or nullarize session by $_SESSION=NULL and then
set variables by session reference...The variables set by session reference
are gone after script ends.

-- 
Edit bug report at https://bugs.php.net/bug.php?id=63375&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63375&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63375&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63375&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63375&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63375&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63375&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63375&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63375&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63375&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63375&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63375&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63375&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63375&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63375&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63375&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63375&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63375&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63375&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63375&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63375&r=mysqlcfg

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