Source for file storage.php
Documentation is available at storage.php
* @package Joomla.Platform
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
* Custom session storage handler for PHP
* @package Joomla.Platform
* @see http://www.php.net/manual/en/function.session-set-save-handler.php
* @todo When dropping compatibility with PHP 5.3 use the SessionHandlerInterface and the SessionHandler class
* @var array JSessionStorage instances container.
protected static $instances =
array();
* @param array $options Optional parameters.
* Returns a session storage handler object, only creating it if it doesn't already exist.
* @param string $name The session store to instantiate
* @param array $options Array of options
* @return JSessionStorage
public static function getInstance($name =
'none', $options =
array())
if (empty(self::$instances[$name]))
$class =
'JSessionStorage' .
ucfirst($name);
$path = __DIR__ .
'/storage/' .
$name .
'.php';
// No attempt to die gracefully here, as it tries to close the non-existing session
jexit('Unable to load session storage class: ' .
$name);
self::$instances[$name] =
new $class($options);
return self::$instances[$name];
* Register the functions of this class with PHP's session handler
// Use this object as the session handler
session_set_save_handler(
array($this, 'open'), array($this, 'close'), array($this, 'read'), array($this, 'write'),
array($this, 'destroy'), array($this, 'gc')
* Open the SessionHandler backend.
* @param string $save_path The path to the session object.
* @param string $session_name The name of the session.
* @return boolean True on success, false otherwise.
public function open($save_path, $session_name)
* Close the SessionHandler backend.
* @return boolean True on success, false otherwise.
* Read the data for a particular session identifier from the
* SessionHandler backend.
* @param string $id The session identifier.
* @return string The session data.
public function read($id)
* Write session data to the SessionHandler backend.
* @param string $id The session identifier.
* @param string $session_data The session data.
* @return boolean True on success, false otherwise.
public function write($id, $session_data)
* Destroy the data for a particular session identifier in the
* SessionHandler backend.
* @param string $id The session identifier.
* @return boolean True on success, false otherwise.
* Garbage collect stale sessions from the SessionHandler backend.
* @param integer $maxlifetime The maximum age of a session.
* @return boolean True on success, false otherwise.
public function gc($maxlifetime =
null)
* Test to see if the SessionHandler is available.
* @return boolean True on success, false otherwise.
* Test to see if the SessionHandler is available.
* @return boolean True on success, false otherwise.
* @deprecated 12.3 (Platform) & 4.0 (CMS) - Use JSessionStorage::isSupported() instead.
public static function test()
JLog::add('JSessionStorage::test() is deprecated. Use JSessionStorage::isSupported() instead.', JLog::WARNING, 'deprecated');
return static::isSupported();
Documentation generated on Tue, 19 Nov 2013 15:14:23 +0100 by phpDocumentor 1.4.3