remember me cookies gets deleted symfony2 - php

Question

I am trying to configure remember me feature of symfony using their default mechanism as described here; but couldn't make it work.
Cookie named REMEMBERME is created, but is set to deleted and its expire date is 1970. This is why I suppose remember me function is not working. However, when I use (always_remember_me: true) in security.yml, the code works nicely but it doesn't suite my purpose. Using (always_remember_me: true) even if user doesn't check REMEMBER ME checkbox in UI the cookie gets created.
Any help is highly appreciated
I am using the version 2.3.7
This is my complete security.yml file:
security:
firewalls:
main:
pattern: ^/
anonymous: ~
remember_me:
key: "%secret%"
lifetime: 31536000 # a year
domain: ~
path: /
remember_me_parameter: _remember_me
#always_remember_me: true
form_login:
login_path: _my_login
check_path: _my_login_check
always_use_default_target_path: true
default_target_path: /out/homepage
remember_me: true
logout:
path: _my_logout
target: _my_login
access_control:
- { path: ^/admin, roles: ROLE_ADMIN }
- { path: ^/login$, roles: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/, roles: IS_AUTHENTICATED_REMEMBERED }
providers:
chain_provider:
chain:
providers: [in_memory, user_db]
in_memory:
memory:
users:
user: { password: user, roles: 'ROLE_USER' }
admin: { password: admin, roles: ['ROLE_ADMIN', 'ROLE_USER'] }
user_db:
entity: {class: ProjectName\StoreBundle\Entity\User, property: username}
encoders:
ProjectName\StoreBundle\Entity\User:
algorithm: sha1
iterations: 1
encode_as_base64: false
Symfony\Component\Security\Core\User\User: plaintext
LoginController.php
class LoginController extends Controller
{
/**
* #Route("/login", name="_my_login")
* #Template()
*/
public function loginAction()
{
$request = $this->getRequest();
$session = $request->getSession();
// get the login error if there is one
if ($request->attributes->has(SecurityContext::AUTHENTICATION_ERROR)) {
$error = $request->attributes->get(
SecurityContext::AUTHENTICATION_ERROR
);
} else {
$error = $session->get(SecurityContext::AUTHENTICATION_ERROR);
$session->remove(SecurityContext::AUTHENTICATION_ERROR);
}
return array(
// last username entered by the user
'last_username' => $session->get(SecurityContext::LAST_USERNAME),
'error' => $error,
);
}
/**
* #Route("/login_check", name="_my_login_check")
*/
public function loginCheckAction()
{
}

Answer 1

I added the value attribute inside the input tag. After removing it, it worked for now. :)
<input type="checkbox" id="remember_me" name="_remember_me" checked /> Remember me

Answer 2

I suppose the checkbox is named incorrectly. It should have the 'name' attribute set to '_remember_me' to make the magic happen. Can you post the content of the form template?