Session is destroyed when browser is closed. | ZF2 - php

Question

I want to implement session and cookies in my zend application. Session is working fine within the tabs but when I reopen the browser then sessionId in the cookie changes and my application shows user is not logged in.
Below is the code of Module.php of Application Module.
public function onBootstrap(MvcEvent $e)
{
$eventManager = $e->getApplication()->getEventManager();
$moduleRouteListener = new ModuleRouteListener();
$moduleRouteListener->attach($eventManager);
$eventManager->attach('dispatch', array($this, 'loadConfiguration' ));
$this->initSession(array(
'remember_me_seconds' => 864000,
'use_cookies' => true,
'cookie_httponly' => true,
'cookie_secure' => false,
));
}
public function initSession($config){
$sessionConfig = new SessionConfig();
$sessionConfig->setOptions($config);
$sessionManager = new SessionManager($sessionConfig);
$sessionManager->start();
Container::setDefaultManager($sessionManager);
}
public function loadConfiguration(MvcEvent $e)
{
$controller = $e->getTarget();
$session = new Container('user_session_data');
if(isset($session->user_id)){
//user is logged in set his data to viewModel
$controller->layout()->user_id = $session->user_id;
$controller->layout()->firstName = $session->firstName;
$controller->layout()->lastName = $session->lastName;
$controller->layout()->profilePicture = $session->profilePicture;
}
}
I access these values in my layout.phtml file. Below is the code to save session data when user is successfully logged in.
$session = new Container('user_session_data');
if($session->user_id){
echo "You are already logged in";
}
// store user details in session
$session->user_id = $responseDataArray['data']['id'];
$session->firstName = $responseDataArray['data']['firstName'];
$session->lastName = $responseDataArray['data']['lastName'];
$session->profilePicture = $responseDataArray['data' ['profilePicture'];
I don't know what I am missing to persist session data.