利用yahoo汇率接口实现实时汇率转换示例 汇率转换器

　　function getExchangeRate($from_Currency,$to_Currency)

　　{

　　$amount = urlencode($amount);

　　$from_Currency = urlencode($from_Currency);

　　$to_Currency = urlencode($to_Currency);

　　$url = "download.finance.yahoo.com/d/quotes.html?s=".$from_Currency.$to_Currency."=X&f=sl1d1t1ba&e=.html";

　　$ch = curl_init();

　　$timeout = 0;

　　curl_setopt ($ch, CURLOPT_URL, $url);

　　curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

　　curl_setopt($ch,  CURLOPT_USERAGENT , "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");

　　curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

　　$rawdata = curl_exec($ch);

　　curl_close($ch);

　　$data = explode(',', $rawdata);

　　return $data[1];

　　}

　　//调用方法

　　echo getExchangeRate("CNY","USD");