Zend Framework 101: Zend_Session

By Quentin Zervaas, 6 January 2010 PHP Sessions Zend Framework Download PDF

Removing Session Data

To remove a value from a session, use PHP's unset() function on the object property. This is demonstrated in Listing 5.

Listing 5 Removing a value from a session namespace (listing-5.php)

<?php
    require_once('Zend/Session.php');
 
    $session = new Zend_Session_Namespace('identity');
    unset($session->username);
?>

In some cases you might want to remove all data in a namespace. You can do this either by looping over all values in the namespace and calling unset() on each one, or you can use theZend_Session::namespaceUnset(). This method accepts the name of the namespace as its only argument, as demonstrated in Listing 6.

Listing 6 Removing an entire namespace from a session (listing-6.php)

<?php
    require_once('Zend/Session.php');
 
    Zend_Session::namespaceUnset('identity');
?>

You can destroy the entire current session using the Zend_Session::destroy() static function.

• Next: Implementing "Remember Me" Functionality