Magento 2 - Check if user is loggen in header.html

Question

I'm trying to create a piece of code to check if the customer is loggen in or not. I read not to use the objectmanager for that, but I don't know where to put which code.

What I need:

if customer is logged in { Go to my account } else { Login }

How can this be achieved?

I'm using Magento 2.2.6

Answer 1

You can use the below code as below:

protected $_custSession;

public function __construct(
    .....
    \Magento\Customer\Model\Session $session,
    .....
) {
    .....
    $this->_custSession = $session;
    .....
}

//later in your code you can use it as below

if ($this->_custSession->isLoggedIn()) {
    // if customer is logged in 
} else {
    // if customer is not logged in
}

Since you are asking your question in phtml you can use the below code:

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$customSession = $objectManager->get('Magento\Customer\Model\Session');
if($customSession->isLoggedIn()) {
   // customer is logged in
}
else{
  //customer is not logged in
}

Answer 2

You can make custom helper in and can call in app/design/frontend/theme/themename/Magento_Theme/templates/html/header.phtml

like below:

$helper = $this->helper('Vendor\Module\Helper\Header'); and you can call like:

$helper->isCustomerLoggedIn();

In Vendor\Module\Helper\Header Class you can make one method for check customer is logged in or not

                 <?php
                  namespace Vendor\Module\Helper;

            class Header extends 
           \Magento\Framework\App\Helper\AbstractHelper
             {

public function __construct(
\Magento\Framework\App\Helper\Context $context,
\Magento\Customer\Model\Session $customerSession
        ) {

    $this->_customerSession = $customerSession;
    parent::__construct($context);
}

public function isCustomerLoggedIn(){
    return $this->_customerSession->isLoggedIn();
}

}