Redirect when accessing /login when logged in

Question

I am using Theme My Login plugin to change the login page from "/wp-login.php" to "/login".

My question is how do I redirect a user that has already logged in so that visiting "/login" instead takes them to my homepage?

Note: I am not talking about the initial redirect after logging in, but rather if someone was to visit the login page again afterwards.

I saw a similar question was asked here: wp-login.php — redirect logged in users to custom URL

I tried using the code posted there, and changed it to:

function redirect_logged_in_user() 
{
    if( is_user_logged_in ) {
      wp_redirect('http://my_homepage_url');
    }
}

global $pagenow;
if( $pagenow == '/login')     
redirect_logged_in_user();

but it still does not work.

any help would be much appreciated.

cheers.

Answer 1

I advice you to try this, better to the action login_init:

add_action('login_init', 'redirect_logged_in_user');
function redirect_logged_in_user()
{
    global $action;

    /* if the user call logout and is not logged in we do nothing*/
    if ('logout' === $action || !is_user_logged_in()) {
        return;
    }

    /* we redirect logged in people*/
    wp_redirect('http://my_homepage_url');
    exit;
}

Answer 2

    add_action('wp', 'add_login_check');
function add_login_check()
{
    if ( is_user_logged_in() && is_page( [6070, 6072] ) ) {
        wp_redirect('http://my_homepage_url');
        exit;
    }
}

i took the code from here: https://stackoverflow.com/a/25992092

i then moved the "add_action('wp', 'add_login_check');" to the top and added another "is_page" (6070=login page ID, 6072=register page ID).

it seems to be holding up so far and allows me to log out.

is this code written well? would it be necessary to change anything?