汇率转换

汇率转换程序很简单，麻烦的是找到汇率的接口，雅虎的接口测试无效，奉上新的接口(http://www.k780.com/)。

本人使用的是php实现的，用ajax一样。

<?php
// 汇率调用方法
$from_Currency="CNY";
$to_Currency="NZD";
$amount=100;

$amount = urlencode($amount);
$from_Currency = urlencode($from_Currency);
$to_Currency = urlencode($to_Currency);
$url="http://api.k780.com:88/?app=finance.rate&scur=".$from_Currency."&tcur=".$to_Currency."&appkey=自己的key&sign=自己的sign&format=json";
$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($ch);
if(!empty($rawdata)){
$hl=json_decode($rawdata,true);
$hl_show = round($hl["result"]["rate"],4);
$hl_amount=$hl["result"]["rate"]*$amount;
}else{
$hl_show = "wrong";
$hl_amount="wrong";
}

?>

接口返回的是json格式数据

{"success":"1","result":{"status":"ALREADY","scur":"CNY","tcur":"NZD","ratenm":"人民币/新西兰元","rate":"0.243009","update":"2015-07-27 22:02:30"}}