Redirect to other page if login

Question

I have a home/static page with login button. Currently I've set the button url as "http://example.com/login"

How can I set the login button to redirect to a specific page IF/WHEN the user is logged in?

I do not know much about coding. I found some solution about add_action or something and added to theme's function.php. But I can't get it work.

Summary: if non-login user: login button url ---> login page if login user: login button url ---> specific page

Answer 1

Add below code in your functions.php file of active theme directory in order to restrict the login page to logged-in users and redirect them to core user page (user profile). You can replace "um_get_core_page( 'user' )" with any page URL where you want to redirect logged-in users.

/* Restrict Login page to logged-in users and redirect to core user page (user profile) */
add_action( 'template_redirect', 'um_restrict_login_page_logged_in' );
function um_restrict_login_page_logged_in() {
    if ( um_is_core_page('login') && is_user_logged_in() ) {
        wp_redirect( um_get_core_page( 'user' ) );
        exit;
    }
}

Hope this works!!

Answer 2

Okay so you are asking if user logged in then redirect to other pages or something like this. It's WordPress pre-built functionality. you can check it out here. You can copy and paste my code in your functions.php if you don't understand from reference code.

add_action( 'init', 'check_user_loggedin' );
function check_user_loggedin(){
    if ( is_user_logged_in() ) {
       wp_redirect( 'https://www.google.com' );
    } else {
        echo 'Welcome, visitor!';
    }
}

Description:

here is_user_logged_in() is checking user login status and if user login status is true then redirect to link or do whatever you like or if status is false then do something else.Here wp_redirect is WordPress default functionality for redirecting to specified link.