WP Append login/logout links

login-logout-links.php

// Add login/logout links to the footer navigation
// This will filter through the menu items and look for the footer-menu.
// Then append login/logout links to the end

function add_loginout_menu_to_footer( $items, $args ) { 
    // only add login/out items to the footer menu
    if ( is_admin() || $args->theme_location != 'footer-menu' ) // change 'footer-menu' to the name of the menu you want to add the login links to. i.e. change to 'primary' to add links to the primary menu
        return $items;
    $link = wp_loginout( $redirect = home_url(), $echo = false ); // use wp_loginout() to return the correct login OR logout link strings
    // append our new list item to the current menu list items and return it
    return $items.= '<li class="menu-item menu-type-link" id="log-in-out-link">'. $link . '</li>'; 
} add_filter( 'wp_nav_menu_items', 'add_loginout_menu_to_footer', 50, 2 );