Connection between CI and simple php for to read $_SESSION - php

Question

I'm trying to integrate a forum (created in Codeigniter) into a website (simple php >>> no framework used).
In order to automatically login to the forum, when I login in my website, I need to use a function of the forum which expects 2 parameters $username and $password.
I already have this informations (username and password) from my website, in $_SESSION.
How can I read the $_SESSION from the forum(as I say before Codeigniter based), because, I have no acces to it.
Is there a posibility to define 2 constants, somewhere in the core / config of the forum, to hold these details from $_SESSION, in order to have acces from anywhere inside the forum ?
I know that the sessions from CI are different from $_SESSION, so please help me with something more practical, in order to solve my problem.
Thanks.

Answer 1

Read this url;-
http://codeigniter.com/forums/viewthread/158923/#766011
http://codeigniter.com/forums/viewthread/188648/#892137
In case for those who want to do native session with 2.0.2
Just copy the native_session.php file to your application/libraries/ and rename it as Session.php
Then change the class name and constructor name to CI_Session
Also add the following then it should work fine.
function sess_destroy()
{
$this->destroy();
}
or
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/*
Native / Database hybrid
Code Igniter
Citrusmedia - Matthew Lymer
*/
class CI_Session
{
var $sess_table_name = '';
var $sess_expiration = 7200;
var $sess_match_ip = FALSE;
var $sess_match_useragent = TRUE;
var $sess_time_to_update = 300;
var $encryption_key = '';
var $flashdata_key = 'flash';
var $time_reference = 'time';
var $gc_probability = 5;
var $userdata = array();
var $CI;
var $now;
/**
* Session Constructor
*
* The constructor runs the session routines automatically
* whenever the class is instantiated.
*/
function CI_Session($params = array())
{
log_message('debug', "Session Class Initialized");
// Set the super object to a local variable for use throughout the class
$this->CI =& get_instance();
// Set all the session preferences, which can either be set
// manually via the $params array above or via the config file
foreach (array('sess_table_name', 'sess_expiration', 'sess_match_ip', 'sess_match_useragent', 'sess_time_to_update', 'time_reference', 'encryption_key') as $key)
{
$this->$key = (isset($params[$key])) ? $params[$key] : $this->CI->config->item($key);
}
// Sessions, start your engines!
ini_set("session.gc_maxlifetime", $this->sess_expiration);
session_start();
// Load the string helper so we can use the strip_slashes() function
$this->CI->load->helper('string');
// Are we using a database? If so, load it
if( !$this->sess_table_name ) {
die('Session class database table name not configured');
}
$this->CI->load->database();
// Set the "now" time. Can either be GMT or server time, based on the
// config prefs. We use this to set the "last activity" time
$this->now = $this->_get_time();
// Set the session length. If the session expiration is
// set to zero we'll set the expiration two years from now.
if ($this->sess_expiration == 0)
{
$this->sess_expiration = (60*60*24*365*2);
}
// Run the Session routine. If a session doesn't exist we'll
// create a new one. If it does, we'll update it.
if ( ! $this->sess_read())
{
$this->sess_create();
}
else
{
$this->sess_update();
}
// Delete 'old' flashdata (from last request)
$this->_flashdata_sweep();
// Mark all new flashdata as old (data will be deleted before next request)
$this->_flashdata_mark();
// Delete expired sessions if necessary
$this->_sess_gc();
log_message('debug', "Session routines successfully run");
}
// --------------------------------------------------------------------
/**
* Fetch the current session data if it exists
*
* #access public
* #return bool
*/
function sess_read()
{
// Unserialize the session array
// $session = $this->_unserialize($session);
$session = array();
foreach( array('session_id', 'ip_address', 'user_agent', 'last_activity') as $key )
{
if( !isset($_SESSION[$key]) ) {
$this->sess_destroy();
return FALSE;
}
$session[$key] = $_SESSION[$key];
}
// Is the session current?
if (($session['last_activity'] + $this->sess_expiration) < $this->now)
{
$this->sess_destroy();
return FALSE;
}
// Does the IP Match?
if ($this->sess_match_ip == TRUE AND $session['ip_address'] != $this->CI->input->ip_address())
{
$this->sess_destroy();
return FALSE;
}
// Does the User Agent Match?
if ($this->sess_match_useragent == TRUE AND trim($session['user_agent']) != trim(substr($this->CI->input->user_agent(), 0, 50)))
{
$this->sess_destroy();
return FALSE;
}
$this->CI->db->where('session_id', $session['session_id']);
if ($this->sess_match_ip == TRUE)
{
$this->CI->db->where('ip_address', $session['ip_address']);
}
if ($this->sess_match_useragent == TRUE)
{
$this->CI->db->where('user_agent', $session['user_agent']);
}
$query = $this->CI->db->get($this->sess_table_name);