PHP と MongoDB を使用して単純なセッション マネージャーを実装しています。しかし、どういうわけか、$_SESSION
次のページでは空ですが、最初のページでは値が割り当てられています..
class SessionManager
{
//name of collection where sessions will be stored
const COLLECTION = 'sessions';
//Expire session after 10 mins in inactivity
const SESSION_TIMEOUT = 600;
//Expire session after 1 hour
const SESSION_LIFESPAN = 3600;
//name of session cookie
const SESSION_NAME = 'mongosessid';
const SESSION_COOKIE_PATH = '/';
const SESSION_COOKIE_DOMAIN = '';
private $_mongo;
private $_collection;
//Represent the current session
private $_currentSession;
function __construct()
{
$this->_mongo = DBConnection::instantiate();
$this->_collection = $this->_mongo->getCollection(SessionManager::COLLECTION);
session_set_save_handler(
array(&$this, 'open'),
array(&$this, 'close'),
array(&$this, 'read'),
array(&$this, 'write'),
array(&$this, 'destroy'),
array(&$this, 'gc')
);
//Set session garbage collection period
ini_set('session.gc_maxlifetime', SessionManager::SESSION_LIFESPAN);
//Set session cookie configurations
session_set_cookie_params(
SessionManager::SESSION_LIFESPAN,
SessionManager::SESSION_COOKIE_PATH,
SessionManager::SESSION_COOKIE_DOMAIN
);
//Replace 'PHPSESSID' with 'mongosessid' as the
// session name
session_name(SessionManager::SESSION_NAME);
session_cache_limiter('nocache');
register_shutdown_function('session_write_close');
// start the session
session_start();
}
public function open($path, $name)
{
return true;
}
public function close()
{
return true;
}
public function read($sessionId)
{
$query = array(
'session_id' => $sessionId,
'timedout_at' => array('$gte' => time()),
'expire_at' => array('$gte' => time() - SessionManager::SESSION_LIFESPAN)
);
$result = $this->_collection->findOne($query);
$this->_currentSession = $result;
if (!isset($result['data'])) {
return '';
}
return $result['data'];
}
public function write($sessionId, $data)
{
// $expired_at = time() + self::SESSION_TIMEOUT;
$new_obj = array(
'data' => $data,
'timedout_at' => time() + self::SESSION_TIMEOUT,
'expired_at' => (empty($this->_currentSession)) ?
time() + SessionManager::SESSION_LIFESPAN
: $this->_currentSession['expired_at']
);
$query = array('session_id' => $sessionId);
$this->_collection->update(
$query,
array('$set' => $new_obj),
array('upsert' => true)
);
return true;
}
public function destroy($sessionId)
{
$this->_collection->remove(array('session_id' => $sessionId));
return true;
}
public function gc()
{
$query = array('expired_at' => array('$lt' => time()));
$this->_collection->remove($query);
return true;
}
}
// initiate the session
$session = new SessionManager();
次に、これをテストするために 2 つの新しいスクリプトを作成しましたsessionManager
Mongo_session1.php
<?php
// Session started by requiring the script
require('session.php');
// Generate random number
$random_number = rand();
//Put the number into session
$_SESSION['random_number'] = $random_number;
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="css/style.css"/>
<title>Using SessionManager ... Page 1</title>
</head>
<body>
<p> Random number generated
<span style="font-weight: bold">
<?php echo $_SESSION['random_number']; ?>
</span>
</p>
<p>
PHP session id
<span style="text-decoration: underline">
<?php echo session_id(); ?>
</span>
</p>
<a href="mongo_session2.php">Go to Next page</a>
</body>
</html>
Mongo_session2.php
<?php
// Session started by requiring the script
require('session.php');
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="css/style.css"/>
<title>Using SessionManager ... Page 2</title>
</head>
<body>
<h2>Using the SessionManager.. Page 2</h2>
<p>The random number generated in previous page is still
<span style="font-weight: bold">
<?php
echo "<pre>";
print_r($_SESSION);
echo "</pre>";
?>
</span>
</p>
<p>
PHP session id
<span style="text-decoration: underline;">
<?php echo session_id(); ?>
</span>
</p>
</body>
</html>
以前に同じ問題に直面したことがあり、その解決策を見つけた場合は、MongoDB と PHP の Web 開発について学ぶことが非常に役に立ちます。前もって感謝します。