仅当用户登录时才加载页面

Question

I'd like to load different pages on a button click on the condition that the user is already logged in (or not). I've tried the below code however I'm getting the error "Uncaught ReferenceError: is_user_logged_in is not defined"

My current code is:

if(is_user_logged_in()) 
        {
          localStorage.setItem('mood-board', JSON.stringify(selectedOptions));
          window.location.href = "https://manilva.co/click-to-reveal/";
        } 

        else 
        {
          localStorage.setItem('mood-board', JSON.stringify(selectedOptions));
          window.location.href = "https://manilva.co/register/";
        }

Answer 1

The function is_user_logged_in is actually a wordpress internal function and written in PHP . So it can not be used in JS directly so here is the workaround for this.
So the code should be the following:

<?php if(is_user_logged_in()) { ?>
    <script>
        localStorage.setItem('mood-board', JSON.stringify(selectedOptions));
        window.location.href = "https://manilva.co/click-to-reveal/";
    </script>
<?php } else  { ?>
    <script>
        localStorage.setItem('mood-board', JSON.stringify(selectedOptions));
        window.location.href = "https://manilva.co/register/";
    </script>
<?php } ?>