Example of using the session cycle and number limit of zf framework_PHP tutorial

require_once("Zend/Loader.php");
Zend_Loader::loadClass("Zend_Session_Namespace");
$Session = new Zend_Session_Namespace('Db');
$Session ->host = '127.0.0.1';
$Session -> ;username = 'root';
$Session ->password = '111';
$Session ->dbname = 'test';
//Define session expiration time
$Session - >setExpirationSeconds(300);
//Define the number of session steps
$Session ->setExpirationHops(2, 'host');
$Session ->setExpirationHops(3, 'username');
$Session ->setExpirationHops(4 , 'password');
$Session ->setExpirationHops(5 , 'dbname');
?>