problems with $_SESSION - Printable Version

problems with $_SESSION - Printable Version

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+--- Thread: problems with $_SESSION (/showthread.php?tid=26249)

problems with $_SESSION - El Forum - 01-09-2010

[eluser]_SC_[/eluser]
Hi all,
I have some troubles with $_SESSION.
In my controller I have :

Code:
$this-> MAdmins-> verifyUser($u,$pw);

if ($_SESSION['userid'] > 0){

redirect('admin/dashboard','refresh');

}

In my module I have:

Code:
function verifyUser($u,$pw){

        ...

        $Q = $this-> db-> get('admins');

        if ($Q-> num_rows() > 0){

            $row = $Q-> row_array();

            $_SESSION['userid'] = $row['id'];

            $_SESSION['username'] = $row['username'];

        }else{

$this-> session-> set_flashdata('error', 'Sorry, your username or password is incorrect!');

        }

    }

But if I I insert the incorrect data, when i return at the controller in the row :

Quote:if ($_SESSION['userid'] > 0) ...

I get an error: Message: Undefined index: userid
How I can fix this?

Another problem is : why i dont get the messange set in flashdata?
how set_flashdata works? When you print the message? Inside the module or into the controller when you use the $_SESSION object?

problems with $_SESSION - El Forum - 01-09-2010

[eluser]gigas10[/eluser]
Did you declare session_start() in the constructor of your controller class just after the parent::Controller() line?

Code:
function __construct(){

    parent::Controller();

    session_start();

    $this->load->model('my_model');

}

problems with $_SESSION - El Forum - 01-09-2010

[eluser]_SC_[/eluser]
yes:

function Welcome()
{
parent::Controller();
session_start();
}

problems with $_SESSION - El Forum - 01-09-2010

[eluser]gigas10[/eluser]
Oh I see the problem, at least how to get rid of the error message:

Code:
if (isset($_SESSION['userid']) && $_SESSION[‘userid’] > 0){

    //do whatever

}

Also to display flash data you do it in the view.

Code:
echo $this->session->flashdata('error');

problems with $_SESSION - El Forum - 01-09-2010

[eluser]_SC_[/eluser]
oh thank you very much!