Typo3 Extbase Set and Get values from Session

Question

I am writing an extbase extension on typo3 v6.1 That extension suppose to do a bus ticket booking. Here what my plan is, user will select date and number of seats and submit

Answer 1

I'm using for this a service class.

fe_user->getKey('ses', $this->prefixKey . $key);
        return unserialize($sessionData);
    }

    /**
    * Writes an object into the PHP session
    * @param    $object any serializable object to store into the session
    * @return   Tx_EXTNAME_Service_SessionHandler this
    */
    public function writeToSession($object, $key) {
        $sessionData = serialize($object);
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->prefixKey . $key, $sessionData);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
        return $this;
    }

    /**
    * Cleans up the session: removes the stored object from the PHP session
    * @return   Tx_EXTNAME_Service_SessionHandler this
    */
    public function cleanUpSession($key) {
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->prefixKey . $key, NULL);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
        return $this;
    }

    public function setPrefixKey($prefixKey) {
    $this->prefixKey = $prefixKey;
    }

}
?>

Inject this class into your controller

/**
 *
 * @var Tx_EXTNAME_Service_SessionHandler
 */
protected $sessionHandler;

/**
 * 
 * @param Tx_EXTNAME_Service_SessionHandler $sessionHandler
 */
public function injectSessionHandler(Tx_EXTNAME_Service_SessionHandler $sessionHandler) {
    $this->sessionHandler = $sessionHandler;
}

Now you can use this session handler like this.

// Write your object into session
$this->sessionHandler->writeToSession('KEY_FOR_THIS_PROCESS');

// Get your object from session
$this->sessionHandler->restoreFromSession('KEY_FOR_THIS_PROCESS');

// And after all maybe you will clean the session (delete)
$this->sessionHandler->cleanUpSession('KEY_FOR_THIS_PROCESS');

Rename Tx_EXTNAME and tx_extname with your extension name and pay attention to put the session handler class into the right directory (Classes -> Service -> SessionHandler.php).

You can store any data, not only objects.

HTH