<?php
error_reporting(E_ALL | E_STRICT);
date_default_timezone_set('Europe/Brussels');

require_once 'Yume/Session.php';

try
{
	$session = Yume_Session::getSession(Yume_Session::SESSION_DATABASE);
	$session->setRessourceOptions(array(
				'hostname' => 'localhost',
				'dbname' => 'session',
				'username' => 'root',
				'password' => ''
			))
			->setCryptOptions('Bouhhhhhhhh !')
			->start();
	
} catch(Exception $e)
{
	echo $e->getMessage();
}

$session->test = 'oki';

?>

<?php
error_reporting(E_ALL | E_STRICT);
date_default_timezone_set('Europe/Brussels');

require_once 'Yume/Session.php';

try
{
	$session = Yume_Session::getSession(Yume_Session::SESSION_DATABASE);
	$session->setRessourceOptions(array(
				'hostname' => 'localhost',
				'dbname' => 'session',
				'username' => 'root',
				'password' => ''
			))
			->setCryptOptions('Bouhhhhhhhh !')
			->start();
	
} catch(Exception $e)
{
	echo $e->getMessage();
}

echo $session->test;

?>

session.entropy_length = 0
session.entropy_file =
session.entropy_length = 16
session.entropy_file = /dev/urandom
session.hash_function = 1
session.hash_bits_per_character = 6

$_SESSION['login'] = $_REQUEST["'login'];
$_SESSION['password'] = $_REQUEST['password'];

$var = $_GET["something"]; 
$_SESSION[$var] = true; 

CREATE TABLE `sessions` (
  `session_id` varchar(32) NOT NULL,
  `session_data` text NOT NULL,
  `session_time` datetime NOT NULL,
  `session_browser` varchar(255) NOT NULL,
  PRIMARY KEY  (`session_id`)
);

<?php

interface Yume_Session_Interface
{
	public function _open($save_path, $name);
	
	public function _close();
	
	public function _read($id);
	
	public function _write($id, $data);
	
	public function _destroy($id);
	
	public function _gc($maxLifeTime);
	
	public function checkInfo();
}

?>

if (!session_set_save_handler(
	array($this, 'open'),
	array($this, 'close'),
	array($this, 'read'),
	array($this, 'write'),
	array($this, 'destroy'),
	array($this, 'gc')
))
{
	throw new Exception('Session handler error.');
}

	public function start($params = false)
	{
		// Récupère les paramètre et les traîte
		if ($params)
		{
			$this->setRessourceOptions($params);
		}
		
		// Vérifie les paramètre
		if ($this instanceof Yume_Session_Database)
		{
			if (empty($this->_ressourceOptions['hostname']) || !is_string($this->_ressourceOptions['hostname']))
			{
				throw new Exception('Unknown database host.');
			}
			elseif (empty($this->_ressourceOptions['dbname']) || !is_string($this->_ressourceOptions['dbname']))
			{
				throw new Exception('Unknown database name.');
			}
			elseif (empty($this->_ressourceOptions['username']) || !is_string($this->_ressourceOptions['username']))
			{
				throw new Exception('Unknown database username.');
			}
			elseif (!is_string($this->_ressourceOptions['password']))
			{
				throw new Exception('Unknown database password.');
			}
		}
		elseif ($this instanceof Yume_Session_File)
		{
			if (isset($this->_ressourceOptions['save_path']) && is_string($this->_ressourceOptions['save_path']) == false)
			{
				throw new Exception('Invalid save path.');
			}
			else if (empty($this->_ressourceOptions['save_path']))
				{
					$this->_ressourceOptions['save_path'] = session_save_path();
				}
		}
		
		// Configure l'handler de session
		if (!session_set_save_handler(
					array($this, 'open'),
					array($this, 'close'),
					array($this, 'read'),
					array($this, 'write'),
					array($this, 'destroy'),
					array($this, 'gc')
					))
		{
			throw new Exception('Session handler error.');
		}
		
		// Récupère le maxlifetime
		$this->_maxLifeTime = ini_get('session.gc_maxlifetime');
		
		// Enregistre l'heure de début de la session
		$this->_time = date('Y-m-d H-i-s', time());
		
		// Démarre la session
		session_start();
		
		return $this;
	}
	
	public function setRessourceOptions(array $options)
	{
		foreach ($options as $option => $value)
		{
			$this->_ressourceOptions[$option] = $value;
		}
		
		return $this;
	}

public function _open($save_path, $name)
{
	if ($this->_ressource == null)
	{
		$this->_ressource = new PDO
		(
			'mysql:host='.$this->_ressourceOptions['hostname'].';dbname='.$this->_ressourceOptions['dbname'],
			$this->_ressourceOptions['username'],
			$this->_ressourceOptions['password']
			);
		
		$this->_ressource->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
	}
	return true;
}

public function _close()
{
	return true;
}

public function _read($id)
{
	// Récupère les données
	$sql = $this->_ressource->prepare
            ("
				SELECT session_data
				FROM sessions
				WHERE session_id = :id
			");
	
	$sql->bindParam(':id', $id);
	$sql->execute();
	
	$data = $sql->fetch(PDO::FETCH_ASSOC);
	$data = $data['session_data'];
	
	if (empty($data))
	{
		$data = '';
	}
	
	return $data;
}

public function _write($id, $data)
{
	// Met à jour la base de données
	$sql = $this->_ressource->prepare
			("
				UPDATE sessions
				SET session_data = :data,
				session_time = :time;
				WHERE session_id = :id
			");
	
	$sql->bindParam(':id', $id);
	$sql->bindParam(':data', $data);
	$sql->bindParam(':time', $this->_time);
	$sql->execute();
	
	// Ou alors insère les données
	if ($sql->rowCount() == 0)
	{
		$sql = $this->_ressource->prepare
				("
					INSERT INTO sessions (session_id, session_data, session_time)
					VALUES (:id, :data, :time);
				");
		
		$sql->bindParam(':id', $id);
		$sql->bindParam(':data', $data);
		$sql->bindParam(':time', $this->_time);
		$sql->execute();
	}
	
	return true;
}

public function _destroy($id)
{
	$sql = $this->_ressource->prepare
			("
				DELETE FROM sessions
				WHERE session_id = :id
			");
	
	$sql->bindParam(':id', $id);
	$sql->execute();
	
	return true;
}

public function _gc($maxLifeTime)
{
	$sql = $this->_ressource->prepare
			("
				DELETE FROM sessions
				WHERE DATE_ADD(session_time, INTERVAL :maxlifetime SECOND) < NOW()
			");
	
	$sql->bindParam(':maxlifetime', $this->_maxLifeTime);
	$sql->execute();
	
	return true;
}