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Bug #41854 Bug when php try to serialize a array with a number for key
Submitted: 2007-06-29 17:36 UTC Modified: 2007-07-04 22:41 UTC
From: leonardo dot celis at ohstudio dot com dot ar Assigned:
Status: Not a bug Package: Session related
PHP Version: 5.2.3 OS: Windows XP
Private report: No CVE-ID: None
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From: leonardo dot celis at ohstudio dot com dot ar
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 [2007-06-29 17:36 UTC] leonardo dot celis at ohstudio dot com dot ar 
Description:
------------
start.php: here the value is serialize, but php take the value from memory and show it.

show.php: here the value is take from the session file and try to unserialize. The session file have 0 bytes. Therefor the value is no show.

However this script works:
<?
$var['1'] = "Hola mundo";
$x = unserialize(serialize($var));
echo serialize($var) . "<br>";
print_r($x);
?>

This bug I've founded with my partner Mario Garc?a.




Reproduce code:
---------------
start.php
<?
session_start();
$_SESSION['1'] = "Hola mundo";
print_r($_SESSION);
?>

show.php
<?
session_start();
print_r($_SESSION);
?>

Expected result:
----------------
Array ( [1] => Hola mundo )

Actual result:
--------------
Array (  )

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 [2007-07-02 15:57 UTC] iliaa@php.net 
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

The $_SESSION super-global cannot contain keys that are entirely numeric 
because it causes problems for register globals when every key becomes a 
variable and PHP does not allow entirely numeric variable names.
 [2007-07-04 22:37 UTC] leonardo dot celis at ohstudio dot com dot ar 
Hi!

I've a question about the reply.

Why if a array with a numeric key is serialize, when it's deserialize works!

$var['1'] = "Hola mundo";
$x = unserialize(serialize($var));
echo serialize($var) . "<br>";
print_r($x);

But in $_SESSION doesnt?

Thanks!
 [2007-07-04 22:41 UTC] leonardo dot celis at ohstudio dot com dot ar 
Another question,

When this script is execute works fine...

start.php
<?
session_start();
$_SESSION['1'] = "Hola mundo";
print_r($_SESSION);
?>

So, in this instance, the register global works fine. But when php try to retrieve the value from the tmp file, doesn't works?

Thanks again!
 
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