<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category  Zend

 * @package   Zend_Currency

 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license   http://framework.zend.com/license/new-bsd     New BSD License

 * @version   $Id: CurrencyInterface.php 24593 2012-01-05 20:35:02Z matthew $

 */

/**

 * Exception class for Zend_Currency

 *

 * @category  Zend

 * @package   Zend_Currency

 * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license   http://framework.zend.com/license/new-bsd     New BSD License

 */

interface Zend_Currency_CurrencyInterface

{

    /**

     * Returns the actual exchange rate

     *

     * @param string $from Short Name of the base currency

     * @param string $to   Short Name of the currency to exchange to

     */

    public function getRate($from, $to);

}