<?php
/**
 * @title            Import Class
 * @desc             Generic Importer Class for the pH7CMS.
 *
 * @author           Pierre-Henry Soria <ph7software@gmail.com>
 * @copyright        (c) 2012-2017, Pierre-Henry Soria. All Rights Reserved.
 * @license          GNU General Public License; See PH7.LICENSE.txt and PH7.COPYRIGHT.txt in the root directory.
 * @package          PH7 / Install / Class
 * @version          0.1
 */
namespace PH7;
defined('PH7') or exit('Restricted access');

abstract class Import
{

    protected $db;

    public function __construct()
    {
        $this->db = Db::getInstance();

    }

}

<?php
/**
 * @title            Import Class
 * @desc             Generic Importer Class for the pH7CMS.
 *
 * @author           Pierre-Henry Soria <ph7software@gmail.com>
 * @copyright        (c) 2012-2017, Pierre-Henry Soria. All Rights Reserved.
 * @license          GNU General Public License; See PH7.LICENSE.txt and PH7.COPYRIGHT.txt in the root directory.
 * @package          PH7 / Install / Class
 * @version          0.1
 */

namespace PH7;
defined('PH7') or exit('Restricted access');

abstract class Import
{

    protected $db;

    public function __construct()
    {
        $this->db = Db::getInstance();

    }

}

Add blank line before namespace declaration
Add blank line before namespace declaration
