CODEWITHSUNDEEP
phpsessioncodeignitercookies
memento
memento

Reputation: 23

Codeigniter, $_SESSION arrays

i'm trying to use native $_SESSION arrays in Codeigniter beacause i can't use $_COOKIES arrays, so i made my own class but seems that Codeigniter continue to save data on cokkies cause if i disable browser cookies i can't retrieve $_SESSION data :O !! incredible....i can't understand why? is codeigniter stopping or removing all $_SESSION data setted ?

is there someone that is still using only $_SESSION arrays ,aborting default $_COOKIE arrays option? i mean ,i would like to have session data not cookie data but it seems to be impossible :O!!!??!!

i have renamed CI original Session.php library as Cookie.php,and than i made two personal classes into application/libraries and i load them by default into autoloader.php

1) Personal Library - Session.php

session_start();

class Session {


     function set_data($key,$data)
    {

      if(!$key)
      { echo 'first param passed is null in session set_data';}
      if(!$data)
      { echo 'second param passed is null in session set_data';}
     if(isset($key) && isset($data))
     {
         if(isset($_SESSION[$key]))
         {
             unset($_SESSION[$key]);
         }

      return $_SESSION[$key] = $data;


     }
  function keep_data($key)
    {

       if(!$key)
      { echo 'first param passed is null in session keep_data';}

       if(isset($_SESSION[$key]))
       {
         return htmlentities($_SESSION[$key]);
       }
    }

2) Personal Library - Settings.php

class Settings {


     function setsitelanguage()
    {
        $CI =& get_instance();

        if($CI->session->keep_data('lang'))
        {
            $CI->config->config['language'] = $CI->session->keep_data('lang');
        }
        else
        {
          $CI->config->config['language'] = "en";
        }

    }

than i have 2 controllers

1) Controller Home.php

class Home extends Controller {

    function Home()
    {

        parent::Controller();

               $this->settings->setsitelanguage();

        }


    function index()
    {
        $this->load->view('home/home_view');

    }
        function session()
        {
           echo   $this->session->keep_data('lang');
        }

}

2) Controller Auth.php

class Auth extends Controller {


     function usersetlang()
    {

               $lang = $this->uri->segment(3);

              return $this->session->set_data('lang',$lang);





        }
}

as shown in http://mysite/index.php/home/session, i can retrieve my language site stored with session.php by auth.php the only problem is that is not enough using global $_SESSION[] ,because if i try to retrieve data disabling my browser cookies $_SESSION[] data doesn’t appears !!!

Upvotes: 0

Views: 8816

Answers (6)

jronnybravo
jronnybravo

Reputation: 61

We could use the $_SESSION if we do session_start(); The thing is, $_SESSION won't work across pages on codeigniter.

Quick fix:

Since the pages in mvc are triggered by the controller, we could do this

public function __construct(){
    self::$instance =& $this;
    foreach (is_loaded() as $var => $class) {
        $this->$var =& load_class($class);
    }

    $this->load =& load_class('Loader', 'core');

    $this->load->initialize();

    log_message('debug', "Controller Class Initialized");
    session_start();
}

to the CI_Controller class on system/core/Controller.php

It worked!

Upvotes: 5

Matteo Riva
Matteo Riva

Reputation: 25060

If you can't propagate the session id via cookies, you can do so via URL.

See: http://www.php.net/manual/en/session.idpassing.php

Upvotes: 0

Phil Sturgeon
Phil Sturgeon

Reputation: 30766

Since when does CodeIgniter "block" $_SESSION? If you want to use a session, you have to start it. To do that you need to write session_start() somewhere. why not in your index.php?

CodeIgniter is just PHP, not some evil dark magician.

Upvotes: 2

Spudley
Spudley

Reputation: 168823

$_SESSION variables may not be in the cookies themselves, but PHP still needs to be able to track the user's session in order for the $_SESSION variables to be persistent, and it uses cookies for that tracking.

PHP does try to maintain session state if cookies are turned off, by passing the session variable in the URL, but it isn't very reliable.

Bottom line - if you want session data in a web environment, you'll need cookies turned on. Sorry.

You say you can't use cookies, but you didn't really explain why. It's fairly unusual these days for people to want to turn off cookies, as they're used virtually everywhere.

Upvotes: 6

Ross
Ross

Reputation: 17987

Yes you can do that

create this table:

CREATE TABLE IF NOT EXISTS  `ci_sessions` (
session_id varchar(40) DEFAULT '0' NOT NULL,
ip_address varchar(16) DEFAULT '0' NOT NULL,
user_agent varchar(50) NOT NULL,
last_activity int(10) unsigned DEFAULT 0 NOT NULL,
user_data text NOT NULL,
PRIMARY KEY (session_id)
);

and change this in the config:

$config['sess_use_database'] = FALSE;

to

$config['sess_use_database'] = TRUE;

$config['sess_table_name'] = 'ci_sessions'; should match the name of your table.

To clarify - by default, CI's session system uses a cookie to store the data. Don't know why, it just does. You can change this for security etc by using the database table instead.

You access session values exactly the same, but aren't restricted by cookie maximum file sizes, or security risks.

You can of course use normal $_SESSIONS and create your own script - remember CI is a framework, you aren't required to use all of it.

Upvotes: 3

chigley
chigley

Reputation: 2592

There's a cookie that stores PHPSESSID browser side.

Upvotes: 0

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