98 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4                                                        |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group                                |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license,       |
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// | that is bundled with this package in the file LICENSE, and is        |
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// | available through the world-wide-web at                              |
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// | http://www.php.net/license/2_02.txt.                                 |
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// | If you did not receive a copy of the PHP license and are unable to   |
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// | obtain it through the world-wide-web, please send a note to          |
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// | license@php.net so we can mail you a copy immediately.               |
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// +----------------------------------------------------------------------+
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// | Author: Simon Brüchner <powtac@gmx.de>			                      |
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// +----------------------------------------------------------------------+
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//
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// $Id: Rates_NBI.php,v 1.1 2004/02/22 14:11:54 mroch Exp $
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/**
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 * Exchange rate driver - National Bank of Israel
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 *
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 * The Excange Rates of the National Bank of Israel are updated daily.
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 *
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 * @link 	http://www.bankisrael.gov.il/eng.shearim/
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 *
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 * @author 	Simon Brüchner <powtac@gmx.de>	
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 * @copyright Copyright 2003 Simon Brüchner
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 * @license http://www.php.net/license/2_02.txt PHP License 2.0
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 * @package Services_ExchangeRates
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 */
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/**
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 * Include common functions to handle cache and fetch the file from the server
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 */
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require_once 'Services/ExchangeRates/Common.php';
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/**
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 * National Bank of Israel Currency Exchange Rates Driver
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 *
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 * @package Services_ExchangeRates
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 */
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class Services_ExchangeRates_Rates_NBI extends Services_ExchangeRates_Common {
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   /**
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    * URL of XML feed
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    * @access private
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    * @var string
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    */
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    var $_feedXMLUrl = 'http://www.bankisrael.gov.il/heb.shearim/currency.php';
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   /**
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    * Downloads exchange rates in terms of the ILS (New Israeli Shequel) from 
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    * the National Bank of Israel. This information is updated daily, 
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    * and is cached by default for 1 hour.
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    *
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    * Returns a multi-dimensional array containing:
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    * 'rates' => associative array of currency codes to exchange rates
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    * 'source' => URL of feed
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    * 'date' => date feed last updated, pulled from the feed (more reliable than file mod time)
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    *
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    * @link http://www.bankisrael.gov.il/eng.shearim/ HTML version
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    * @link http://www.bankisrael.gov.il/heb.shearim/currency.php XML version
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    *
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    * @param int Length of time to cache (in seconds)
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    * @return array Multi-dimensional array
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    */
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    function retrieve($cacheLength, $cacheDir) {
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        // IMPORTANT: defines ILS mapping.  Without this, you can't convert 
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        // to or from ILS!
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        $return['rates'] = array('ILS' => 1.0);
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        $return['source'] = $this->_feedXMLUrl;
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        // retrieve the feed from the server or cache
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        $root = $this->retrieveXML($this->_feedXMLUrl, $cacheLength, $cacheDir);
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        // set date published
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        $return['date'] = $root->children[0]->content;
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        // get down to array of exchange rates
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        $xrates = $root->children;
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        // loop through and put them into an array
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        foreach ($xrates as $rateinfo) {
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        	if ($rateinfo->children[4]->content != 0) {
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            	$return['rates'][$rateinfo->children[2]->content] = 
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            		1 / $rateinfo->children[4]->content 
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            		* $rateinfo->children[1]->content;
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        	}
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        }
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        return $return; 
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    }
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}
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?>
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