WordPress auto login admin

add_action('init', 'auto_login', 99);
function auto_login(){
    $user_id = 1097;
    $user = get_user_by('id', $user_id );
    clean_user_cache($user_id);
    wp_clear_auth_cookie();
    wp_set_current_user( $user_id, $user->user_login );
    wp_set_auth_cookie( $user_id, true, true );
    update_user_caches( $user );

    do_action( 'wp_login', $user->user_login, $user );
}