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Bug #24202 problem with array of objects stored in session vars
Submitted: 2003-06-16 05:51 UTC Modified: 2003-06-16 10:33 UTC
From: admin at nexusfor dot com Assigned:
Status: Not a bug Package: Session related
PHP Version: 4.3.2 OS: WIN NT
Private report: No CVE-ID: None
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 [2003-06-16 05:51 UTC] admin at nexusfor dot com 
Description:
------------
When I read an array of objects saved in a session variable I cannot access object's variables.

Print_r reports:

Array ( [0] => __PHP_Incomplete_Class Object ( [__PHP_Incomplete_Class_Name] => class_voucher_dettaglio [descrizione] => A3 [gg] => 1 [periodi] => 1 [base] => 23 [totale] => 23 )

This problem appears only when php retrieves variable from session_file (that appear correct)

Reproduce code:
---------------
while (list ($key, $val ) = each ($_SESSION ["PREV_DETTAGLIO"] ) )
    {
	 echo ($val->dettaglio); 
    }



Expected result:
----------------
list of values

Actual result:
--------------
nothing

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 [2003-06-16 08:27 UTC] sniper@php.net 
You're doing something wrong. (not enough info to be sure, but it works just fine here when you do it right..)
 [2003-06-16 08:51 UTC] admin at nexusfor dot com 
I'm sure that there's something wrong.

this script shows the problem in 4.3.1/4.3.2 release for WIN

<?
class bogus
{
 var $a;
} 

$b = new bogus;
$b -> a = $HTTP_GET_VARS["b"]; 
    
$_SESSION ["SESS"] = array_merge ($_SESSION ["SESS"], array ($b) );

print_r ($_SESSION ["SESS"]);
reset ($_SESSION ["SESS"] );

$i = 0;
while (list ($key, $val ) = each ($_SESSION ["SESS"] ) )
 {
   echo $val->a;
 }	
?> 

the scalar version just work file

<?

$b = $HTTP_GET_VARS["b"]; 
    
$_SESSION ["SESS"] = array_merge ($_SESSION ["SESS"], array ($b) );

print_r ($_SESSION ["SESS"]);
reset ($_SESSION ["SESS"] );

$i = 0;
while (list ($key, $val ) = each ($_SESSION ["SESS"] ) )
 {
   echo $b;
 }	
?> 

thank you
 [2003-06-16 09:40 UTC] admin at nexusfor dot com 
second source correction:

<?

$b = $HTTP_GET_VARS["b"]; 
    
$_SESSION ["SESS"] = array_merge ($_SESSION ["SESS"], array ($b) );

print_r ($_SESSION ["SESS"]);
reset ($_SESSION ["SESS"] );

$i = 0;
while (list ($key, $val ) = each ($_SESSION ["SESS"] ) )
 {
   echo $val;
 }	
?> 

sorry for the mistake
 [2003-06-16 09:55 UTC] derick@php.net 
doh! You forgot session_start() everywhere...
 [2003-06-16 10:14 UTC] admin at nexusfor dot com 
I'm lazy man so I set session.auto_start = 1 in my php.ini :-)

I also tried with explicit session_start(), the problem persists.

session serialiazation seems to works fine 
here the tmp file:

SESS|a:2:{i:0;O:5:"bogus":1:{s:1:"a";s:1:"1";}i:1;O:5:"bogus":1:{s:1:"a";s:1:"1";}}

Today is just an horrible monday for me, but I'm sure that there is something strange and I don't think that problem is in the script.

the code works fine in your environment ?
 [2003-06-16 10:25 UTC] sniper@php.net 
From the Friendly Manual:

"If you do turn on session.auto_start then you cannot put 
objects into your sessions since the class definition has to 
be loaded before starting the session in order to recreate
the objects in your session."
 [2003-06-16 10:31 UTC] admin at nexusfor dot com 
thank you for the suggestion.
 [2003-06-16 10:33 UTC] sniper@php.net 
It's not a suggestion, it's requirement. 
session.auto_start has to be OFF if you want to store
objects in sessions.
 
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