if(is_wp_error($user_signon)){
        $has_error = true;
        $message[] = "an error";
    }else{

        $currentuser = wp_get_current_user();
        $currentuserroles = $currentuser -> roles;
        if( in_array( 'author', $currentuserroles ) ){
            $redirect = home_url().'/dashboard-teacher';

        }elseif( in_array( 'subscriber', $currentuserroles ) ){
            $redirect = home_url().'/dashboardwwp-student';

        }else{
            $redirect = home_url();

        }
        wp_redirect( $redirect );
        exit;

    }
}