Cierra la sesión del usuario en WordPress y redirige al home

jpb_logout.php

<?php

function custom_logout() {
    $logout = (bool) filter_input(INPUT_GET, 'logout');

    if ($logout) {
        wp_logout();
        echo '<script type="text/javascript">window.location = "' . home_url() . '";</script>';
    }
}

// run it before the headers and cookies are sent
add_action('after_setup_theme', 'custom_logout');