Clear cookies in yii2 after function call - php

Question

I am facing some issues regarding clearing cookies in yii2. When i am calling a logout function on button click i am trying to perform following actions:
Set authtoken, and its expiration value to null
if Step got performed then clear session and cookies
but the problem is after setting the authtoken and its expiration value to null control is not going under if block (Where i am clearing session and cookies).
public function actionLogout()
{
$userId = \Yii::$app->user->identity->id;
$restobj = new RestController();
$this->token = NuLL;
$expire = Null;
$data = ['userId'=>$userId,'token'=>$this->token,'expire'=>$expire];
$data = json_encode($data);
$authtoken = $restobj->updateItem(\app\urls\urls::setauthtoken, $data);
if($authtoken)
{
$session = new Session();
$session->close();
$session->destroy();
$cookies = \Yii::$app->response->cookies;
unset($cookies['user_cookies']);
Yii::$app->user->logout();
return $this->goHome();
}
}
updateItem function is calling this authtoken function:
<?php
namespace app\actions\userloginactions;
use Yii;
use yii\rest\ActiveController;
use app\models\Authmaster;
use yii\base\Action;
class AuthtokenAction extends Action
{
//function used in rest api call for user token
public function run()
{
$data = Yii::$app->getRequest()->getBodyParams();
$userId = $data['userId'];
$token = $data['token'];
$expire = $data['expire'];
$result = Authmaster::setauthtoken($userId,$token,$expire);
return true;
}
}
setauthtoken function in model called from AuthtokenAction
public static function setauthtoken($userId,$token,$expire)
{
return Authmaster::updateAll(['token'=>$token,'expire'=>$expire],['user_id'=>$userId]);
}
when i click logout button it successfully sets the authtoken and expiration to null but it directly displays true as a result of AuthtokenAction function and control doesn't goes under if block.
that function call is creating some problem if i comment that and write cookies clearing block directly then cookies gets cleared without any problem.

Answer 1

Please check following code to clear all cookies. It is working for me, hope will work for you too.
Yii::$app->cache->flush()

Answer 2

Please try to use following line
$cookies = Yii::$app->response->cookies;
$cookies->remove('user_cookies');
Can you try this one?
if (isset($_SERVER['HTTP_COOKIE'])) {
$cookies = explode(';', $_SERVER['HTTP_COOKIE']);
foreach($cookies as $cookie) {
$parts = explode('=', $cookie);
$name = trim($parts[0]);
setcookie($name, '', time()-1000);
setcookie($name, '', time()-1000, '/');
}
}

Answer 3

Hope this helps others...
$cookies = Yii::$app->response->cookies;
$cookies->remove('username');
unset($cookies['username']);
Found in the following referenced link: http://www.bsourcecode.com/yiiframework2/cookies-handling-in-yii-framework2-0/