php获取实时汇率

function getExchangeRate($from_Currency,$to_Currency,$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);

$pay_amount=round($data[1]*$amount,2);

return $pay_amount;

}

echo getExchangeRate("CNY","USD","3499");