function url()

{

    $protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";

    $url = $protocol . $_SERVER['HTTP_HOST'];

    return $url;

}



function current_url()

{

    return self::url() . $_SERVER['REQUEST_URI'];

}

<?php echo $http_host; ?>

<?php echo $home->url(); ?>