检查WordPress functions.php中的URL

I want to restrict access to a specific URL of my WordPress-Site for logged-in users only. So if someone isnt logged in, they should be redirected to homepage.

I guess its working with this code in functions.php

if (!(is_user_logged_in()) && is_page('PAGE-ID')){
    wp_redirect( home_url() . '/login' );
    exit;
}

But unfortunately this site has no Page-ID, so I have to target the URL instead. How can I do this?

Try like this.

global $post;
$pageUrl = get_permalink($post->ID);

if (!(is_user_logged_in()) && $pageUrl=='http://yoursiteurl.com/page/'){
    wp_redirect( home_url() . '/login' );
    exit;
}