Oct
13

PHP Currency Conversion

Posted on October 13, 2008 by Dayson Pais (Articles, PHP, WebDev)

A much better solution to this exists at http://epicwhale.org/blog/2010/12/currency-conversion-using-php/. We highly recommended you use that instead.

This is a very powerful and light weight PHP class that lets you convert between 65+ currencies using Google Finance (http://www.google.com/finance/converter)

Example:

CurrencyRates::Convert('USD', 'INR');

Output:

49 //Since $1 is Rs. 49

Downloads:

  1. In order to connect to Google Finance, you must have CURL library installed & setup with php on your server.
  2. In case you do not have CURL installed, try deleting the getPage($url) function and uncomment the getPage($url) function below it. This function requires ‘allow_url_fopen‘ to be enabled on your server.
  3. In case you have any further problems or in understanding, post a comment below or feel free to contact me
  4. Also, if you found this article or code useful, post your comments to guide others!
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Comments
Nick on 12 February, 2009 at 4:33 am #

The URL has changed to :
$url = “http://www.google.com/finance/converter?a=1&from=$from&to=$to”;


Dayson Pais on 12 February, 2009 at 4:07 pm #

Hey Nick

Thanks for updating on the new url to google finance. I have updated the code and the post with the latest working class file.

Cheers!


Miguel on 23 March, 2009 at 10:08 pm #

The script have some problems … first, the convert method did not receive any price to convert. That price need to be include in the google call.


Dayson Pais on 25 March, 2009 at 3:38 pm #

The convert method is coded for 1 unit of currency. If you wish to convert more than 1 unit, then you can multiply it outside the class.


Chris Chinchilla on 6 August, 2009 at 11:32 am #

Great, very helpful, I managed to integrate it into CakePHP as a helper easily to!


Marc Warne on 23 September, 2009 at 10:36 pm #

Fantastic bit of code - I didn’t realise that converting currencies like this could be so easy!


Dayson Pais on 23 September, 2009 at 11:22 pm #

@Marc Warne
I’m glad you liked it!


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