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8 * with this package in the file LICENSE.txt.
9 * It is also available through the world-wide-web at this URL:
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16 * @package Zend_Currency
17 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
18 * @license http://framework.zend.com/license/new-bsd New BSD License
23 * Exception class for Zend_Currency
26 * @package Zend_Currency
27 * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
28 * @license http://framework.zend.com/license/new-bsd New BSD License
30 interface Zend_Currency_CurrencyInterface
33 * Returns the actual exchange rate
35 * @param string $from Short Name of the base currency
36 * @param string $to Short Name of the currency to exchange to
38 public function getRate($from, $to);