<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2005 Stefan Neufeind                              |
// +----------------------------------------------------------------------+
// | This source file is subject to the New BSD license, That is bundled  |
// | with this package in the file LICENSE, and is available through      |
// | the world-wide-web at                                                |
// | http://www.opensource.org/licenses/bsd-license.php                   |
// | If you did not receive a copy of the new BSDlicense and are unable   |
// | to obtain it through the world-wide-web, please send a note to       |
// | pajoye@php.net so we can mail you a copy immediately.                |
// +----------------------------------------------------------------------+
// | Author: Tomas V.V.Cox  <cox@idecnet.com>                             |
// |         Pierre-Alain Joye <pajoye@php.net>                           |
// +----------------------------------------------------------------------+
//
/**
 * Financial functions for validation and calculation
 *
 * @category   Validate
 * @package    Validate_Finance
 * @author     Stefan Neufeind <pear.neufeind@speedpartner.de>
 * @copyright  2005 The PHP Group
 * @license    http://www.opensource.org/licenses/bsd-license.php  new BSD
 * @version    CVS: $Id: Finance.php,v 1.11 2005/11/01 13:12:30 pajoye Exp $
 * @link       http://pear.php.net/package/Validate_Finance
 */

/**
* Requires the IBAN Finance Validate class
*/
require_once 'Validate/Finance/IBAN.php';

/**
 * Financial functions for validation and calculation
 *
 * This class provides methods to validate:
 *  - IBAN (international bankaccount number)
 *  - Euro banknote id
 *
 * @category   Validate
 * @package    Validate_Finance
 * @author     Stefan Neufeind <neufeind@speedpartner.de>
 * @copyright  1997-2005 Stefan Neufeind
 * @license    http://www.opensource.org/licenses/bsd-license.php  new BSD
 * @version    Release: @package_version@
 * @link       http://pear.php.net/package/Validate_Finance
 */
class Validate_Finance
{
    /**
     * Validation of an IBAN (international bankaccount number)
     *
     * @param     string      $iban              IBAN to be validated
     * @access    public
     * @since     0.1
     * @return    boolean   true if IBAN is okay
     */
    function iban($iban = '')
    {
        return Validate_Finance_IBAN::validate($iban);
    } // end func iban

    /**
     * Validation of a Euro banknote id
     *
     * @param     string      $banknote              Euro banknote id to be validated
     * @access    public
     * @since     0.1
     * @return    boolean   true if Euro banknote id is okay
     */
    function banknoteEuro($banknote = '')
    {
        $euro_countrycode = array('J', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z');

        if (strlen($banknote) != 12) {
            return false;
        }
        if (!in_array($banknote[0], $euro_countrycode)) {
            return false;
        }

        // build checksum, preparation
        $banknote_replace_chars = range('A', 'Z');
        foreach (range(10, 35) as $tempvalue) {
            $banknote_replace_values[] = strval($tempvalue);
        }

        // build checksum, substitute and calc
        $tempbanknote = str_replace($banknote_replace_chars, $banknote_replace_values, substr($banknote, 0, -1));
        $tempcheckvalue = 0;
        for ($strcounter = 0; $strcounter < strlen($tempbanknote); $strcounter++) {
            $tempcheckvalue += intval($tempbanknote[$strcounter]);
        }
        $tempcheckvalue %= 9; // modulo 9
        $tempcheckvalue = 8 - $tempcheckvalue;

        return (intval($banknote[strlen($banknote)-1]) == $tempcheckvalue);
    } // end func banknoteEuro

} // end class Validate_Finance
?>