[英]currency conversion USD to INR
我想將貨幣從USD轉換為INR,USD的值從url檢索,我想根據當前匯率將其轉換為INR。 這是第一個代碼:
<?php
require_once('currency.php');
$val=$_GET["val"];
echo currency($val);
?>
第二個代碼是:
<?php
function currency($val) {
$amount = $val;
$url = "http://www.google.com/ig/calculator?hl=en&q=$amountUSD=?INR";
$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);
$data = explode(' ', $data['3']);
$var = $data['0'];
return round($var,3);
}
?>
順便說一下,我正在免費托管網站0fees.net上測試此代碼,因此嘗試將實時USD轉換為INR時是否有任何問題?
錯誤在於以下代碼:
function currency($val) {
$amount = $val;
$url = "http://www.google.com/ig/calculator?hl=en&q=$amountUSD=?INR";
// ... ^^^^^^^^^^
}
php嘗試評估變量$amountUSD
(根據php的字符串解析規則 ),並失敗並發出通知:
PHP Notice: Undefined variable: amountUSD in usdtoinr.php code on line 3
相反,您應該寫:
function currency($val) {
$amount = floatval($val);
$url = 'http://www.google.com/ig/calculator?hl=en&q=' . $amount . 'USD=?INR';
// ...
}
為了將來捕獲這些錯誤,請確保將error_reporting
設置為E_ALL | E_STRICT
開發機器上的E_ALL | E_STRICT
。
此外,谷歌的查詢結果是一個JSON文檔。 由於對象中屬性的順序可能有所不同,因此必須使用適當的JSON解析器(例如json_decode
進行解析,如下所示:
$data = json_decode($rawdata, true);
$tmp = explode(' ', $data['rhs']);
return floatval($tmp[0]);
通常,在用戶代理中包含對實際用戶代理(例如,軟件的主頁)的提示也是一個好主意。
使用此PHP代碼
<?php
function currency($from_Currency,$to_Currency,$amount) {
$amount = urlencode($amount);
$from_Currency = urlencode($from_Currency);
$to_Currency = urlencode($to_Currency);
$url = "http://www.google.com/ig/calculator?hl=en&q=$amount$from_Currency=?$to_Currency";
$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);
$data = explode('"', $data['3']);
$var = $data[0];
return round($var,3);
}
?>
並將其用於輸出,當您輸入任何金額時,它將從USD轉換為INR
<?php
require_once('currency.php');
$amount=@$_GET["val"];
$from='USD';
$to='INR';
echo currency($from,$to,$amount);
?>
<form method="get" ><input name="val" type="text"><input type="submit" value="Submit"></form>
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