A way to redirect users when they log in based on their current page

Question

I have a number of pages that are only viewable to users who are NOT logged in. I have a widget that allows users to sign in.

I am trying to find a way for users who sign in whilst on these particular pages to be redirected to my homepage. Any users who sign in on any other pages will remain on that page.

I assume the code will need to be the following:

Has user logged in
     is current page A or B or C
         if yes, redirect to homepage
     else
          redirect to current page

Answer 1

Use this:

if ( is_user_logged_in () ) {
    if ( is_page ( 'A' ) || is_page ( 'B' ) || is_page ( 'C' ) ) {   
        wp_safe_redirect( home_url() ); 
    }   
    // If we don't redirect, then will be in current page. No need to reload this page again. 
}