<?php
/**
* BNR READER CLASS
*
* this class is intended to provide an easy way to read the xml with currencies
* from the bank site, and returns it for further usage in a readable form
*
* @author Cristian Năvălici {@link http://www.lemonsoftware.eu} lemonsoftware [at] gmail [.] com
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version 1.0 26 Oct 2008
*
*/
class BNR_reader extends XML_currency_reader{
/**
* xml file on the BNR site
*/
protected $xmlpath = 'http://www.bnro.ro/nbrfxrates.xml';
// ----------------------------------------------------------------------------
/**
* CONSTRUCTOR
*
*
* @param none
* @return void
*/
public function __construct() { }
// ----------------------------------------------------------------------------
/**
* PARSE RATE CONTENT
*
* this method is used to extract specific information about a currency
* particular usage for National Bank of Romania
*
* @param array - $content - array containing arrays of currencies and rates [2]
* @param string - currency name three letters (currency symbol)
* @return array [rate][multiplier] | empty array of not found
*/
public function parse_rate_contents($content, $currency = 'EUR') {
try {
if ( !$content ) return array();
// cycle for each value
foreach ( $content as $con ) {
$name = $con['currency'];
if ( $name == $currency ) {
return array('rate' => $con['rate'], 'multiplier' => $con['multiplier']);
}
}
return array();
} catch (Exception $e) {
echo 'BNR_reader->parse_rate_contents: ' .$e->getMessage(); exit();
}
}
// ----------------------------------------------------------------------------
/**
* PARSE THE DOMDocument
*
* parse the xml content and returns it into a readable form (array)
* this is a specific functions for National Bank Of Romania
*
* @param none
* @return array - of arrays - for structure see doc or look into the code
*/
public function parse_domdoc() {
try {
if ( !$this->domdoc ) {
throw new Exception('No DOMDocument. DOMconnector() must be run before.');
}
$dom = $this->domdoc;
$sender_nl = $dom->getElementsByTagName('Sender');
$sender_name = $sender_nl->item(0)->nodeValue;
$sending_date_nl = $dom->getElementsByTagName('SendingDate');
$sending_date = $sending_date_nl->item(0)->nodeValue;
// in Cube node we have all the rates
$cube_nl = $dom->getElementsByTagName('Cube')->item(0);
foreach ( $cube_nl->childNodes as $c ) {
$mul = ( $c->hasAttribute('multiplier') ) ? (int)$c->getAttribute('multiplier') : 1;
$currency = $c->getAttribute('currency');
$rate = $c->nodeValue;
$rates[] = array('currency' => $currency, 'rate' => $rate, 'multiplier' => $mul);
}
return array( $sender_name, $sending_date, $rates);
} catch (Exception $e) {
echo 'BNR_reader->DOMconnector: ' .$e->getMessage();
} catch (DOMException $e) {
echo 'DOM: BNR_reader->DOMconnector: ' .$e->getMessage();
}
}
} // class
?>
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