In this blog I am going to tell you how to convert currency using Google Finance. Example: you want to convert Indian Rupee to American Dollar i.e. INR to USD then you can convert it using following url: http://www.google.com/finance/converter?a=$amount&from=$from&to=$to

Pass following: $amount=100 , $from = INR,  $to= USD

url will look like: http://www.google.com/finance/converter?a=100&from=INR&to=USD.

Lets implement it:

Create php file convert_currency.php

function currencyConvert($from,$to,$amount){
 
    $url = "http://www.google.com/finance/converter?a=$amount&from=$from&to=$to";
 
    $request = curl_init();
    $timeOut = 0;
    curl_setopt ($request, CURLOPT_URL, $url);
    curl_setopt ($request, CURLOPT_RETURNTRANSFER, 1);
 
    curl_setopt ($request, CURLOPT_USERAGENT,"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
    curl_setopt ($request, CURLOPT_CONNECTTIMEOUT, $timeOut);
    $response = curl_exec($request);
    curl_close($request);
 
    return $response;
} 

This function accept 3 parameters and send request to Google finance using HTTP and it will return complete code. Now you can call this function where you needed it.

Thanks for reading the blog.