CursBNR.php

<?php
	/*
	 * Class CursBNR v1.02
	 * This class parses BNR's XML and returns the current exchange rate
	 *
	 * Requirements: PHP5 
	 *
	 * Last update: October 2011, 27	 
	 * More info: https://www.curs-valutar-bnr.ro
	 */
	
 	class CursBNR
 	{
 		/**
		 * xml document
		 * @var string
		 */
 		var $xmlDocument = "";
 		
 		
 		/**
		 * exchange date
		 * BNR date format is Y-m-d
		 * @var string
		 */
 		var $date = "";
 		
 		
 		/**
		 * currency
		 * @var associative array
		 */
 		var $currency = array();
 		
 		
 		/**
		 * cursBnrXML class constructor
		 *
		 * @access		public
		 * @param 		$url		string
		 * @return		void
		 */
		function __construct($url)
		{
			$this->xmlDocument = file_get_contents($url);
			$this->parseXMLDocument();
		}
 		
		/**
		 * parseXMLDocument method
		 *
		 * @access		public
		 * @return 		void
		 */
		function parseXMLDocument()
		{
	 		$xml = new SimpleXMLElement($this->xmlDocument);
	 		
	 		$this->date=$xml->Header->PublishingDate;
	 		
	 		foreach($xml->Body->Cube->Rate as $line)	
	 		{ 		 			
	 			$this->currency[]=array("name"=>$line["currency"], "value"=>$line, "multiplier"=>$line["multiplier"]);
	 		}
		}
		
		/**
		 * getCurs method
		 * 
		 * get current exchange rate: example getExchangeRate("USD")
		 * 
		 * @access		public
		 * @return 		double
		 */
		function getExchangeRate($currency)
		{
			foreach($this->currency as $line)
			{
				if($line["name"]==$currency)
				{
					return $line["value"];
				}
			}
			
			return "Incorrect currency!";
		}
 	}
 	
 	//-----------------------------------------------------------------------------------------------------------------------------
    //@an example of using the CursBNR class
     
     $curs=new CursBNR("https://www.bnr.ro/nbrfxrates.xml");
     
     print $curs->date;
     
     print "<hr>";
     print "USD: ".$curs->getExchangeRate("USD");
     print "<hr>";
     print "EUR: ".$curs->getExchangeRate("EUR");
     print "<hr>";
?>