Solved

incomplete class user error?

Posted on 2006-07-20
10
406 Views
Last Modified: 2012-06-27
when a user logs in, i set some session vars and redirect them to a secure page.

I have been having a few problem tonight and i think i have foud the cause but dont know what it means..

if i print out the set session vars before redirecting the user is get the correct info, but when i print out the session vars again on the secure page to see if they are ok (just for debugging) they are different???

HOW I SET SESSION VARS

<?php
// other code here

$query = "SELECT * FROM tblMembers WHERE username = '".$s_Username."' AND password = '".md5($s_Password)."'";
$result = odbc_exec($link_id,$query);
$userData = odbc_fetch_object($result);

require('user.class.php');

session_start();

$_SESSION['member'] = new User($userData->username, <<< OTHER STUFF HERE>>> $userData->email);
$_SESSION['timestamp'] = time();

//header('Location: profile.php');
//exit;
            
echo '<pre>';
print_r($_SESSION);
echo '</pre>';
exit;
?>

and its output:

Array
(
    [member] => user Object
        (
            [username] => null
            [firstname] => null
            [surname] => null
            [email] => null@null.com
        )

    [timestamp] => 1153424076
)

SECURE PAGE CODE:

<?php
session_start();
echo '<pre>';
print_r($_SESSION);
echo '</pre>';
exit;
?>

and its output:

Array
(
    [member] => __PHP_Incomplete_Class Object
        (
            [__PHP_Incomplete_Class_Name] => user
            [username] => null
            [firstname] => null
            [surname] => null
            [email] => null@null.com
        )

    [timestamp] => 1153424159
)

USER CLASS CODE

<?php
class User
{
      var $username;
      var $firstname;
      var $surname;
      var $email;
      
      function User($username, $firstname, $surname, $email)
      {
            $this->username = $username;
            $this->firstname = $firstname;
            $this->surname = $surname;
            $this->email = $email;
      }
}
?>

So as im not a PHP experts i dont know what this __PHP_Incomplete_Class Object means??

Any idea's?

Thanks Ellandrd
0
Comment
Question by:ellandrd
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10 Comments
 
LVL 29

Assisted Solution

by:TeRReF
TeRReF earned 250 total points
ID: 17149162
You have to serialize objects before storing them in a session.
Try this:
instead of:
$_SESSION['member'] = new User($userData->username, <<< OTHER STUFF HERE>>> $userData->email);

Do:
$_SESSION['member'] = serialize(new User($userData->username, <<< OTHER STUFF HERE>>> $userData->email));

The when retirving the object from session do:
$obj = unserialize($_SESSION['member'];
0
 
LVL 29

Assisted Solution

by:TeRReF
TeRReF earned 250 total points
ID: 17149164
$obj = unserialize($_SESSION['member']);
that is...
0
 
LVL 16

Author Comment

by:ellandrd
ID: 17149171
ok brb...
0
 
LVL 9

Accepted Solution

by:
Rob_Jeffrey earned 250 total points
ID: 17149177
On the secure page you need to include
require('user.class.php');

Before the Session_start().  The compiler does not know what to do with the stored class until it's defined.
0
 
LVL 9

Expert Comment

by:Rob_Jeffrey
ID: 17149189
- Right TeRReF is right...
0
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LVL 16

Author Comment

by:ellandrd
ID: 17149216
after i do this:

$obj = unserialize($_SESSION['member']);

how do i retrieve the data stored in the sessiona again?

my code is:

<?php
session_start();

$obj = unserialize($_SESSION['member']);

if(isset($_COOKIE['autologin']) && !isset($obj))
{
}
else if(isset($_SESSION['member']))
{
}

but my session is blank....

e.g:

echo $_SESSION['member']->username; return blank
0
 
LVL 29

Assisted Solution

by:TeRReF
TeRReF earned 250 total points
ID: 17149337
I assigned $_SESSION['member'] to $obj as an example...
If you really want it in $_SESSION['member'], just do this:
$_SESSION['member'] = unserialize($_SESSION['member']);
0
 
LVL 29

Expert Comment

by:TeRReF
ID: 17149341
To clarify things,
echo $obj->username;
would work...
0
 
LVL 16

Author Comment

by:ellandrd
ID: 17152544
Rob_Jeffrey

I now get:

Fatal error: Cannot redeclare class user in e:\domains\q\xxx\user\htdocs\classes\user.class.php on line 3

profile page code:

<?php
include('includes/config.php');
require('classes/user.class.php');

session_start();

if(isset($_COOKIE['autologin']) && !isset($_SESSION['member']))
{
      // register session using cookie detials etc etc
      header('Location: profile.php');
}
else if(isset($_SESSION['member']))
{
       // show user secure contents...
}
0
 
LVL 29

Expert Comment

by:TeRReF
ID: 17158064
Instead of this:
include('includes/config.php');
require('classes/user.class.php');

try this:
include_once('includes/config.php');
require_once('classes/user.class.php');
0

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