PHP Currency Conversion Script

[parabola]

Hi! I need to get a currency conversion script done. I want to make my own exchange rate.

This how id like it to work: User inputs amount in Currency 1, presses submit. It outputs the converted amount using my own exchange rate.

Can anyone tlel me coding how to do this?

Thanks!

[Shane]

What would "Currency 1" be? Your own made up number? Or would it go off real currencies, Eg. USD?

[parabola]

I'm looking to convert USD to AUD.

[Shane]

Here you go, you can embed this into a PHP script rather easly.

I did a quick script that depends on XE.com's converter (and it also depends that the html code for the converter doesn't change very much, if so, the script won't work, LOL.), check out a live demo here:

http://demo.matrixau.net/currency_co...o=aud&amount=5

How to use?
Easy. It's all in the address, like you see in my demo:

http://demo.matrixau.net/currency_convert/convert.php?from=usd&to=aud&amount=5

Code for the script:

 <?php
 
//*****************************************
//This rather ugly code is done by Shane  *
//   Contact Shane: shane@matrixau.net    *
//  Exclusively for YoungCoders.com!      *
//                                        *
// PLEASE DON'T REMOVE THIS IF POSSIBLE!  *
//*****************************************
 
//Get file's contents
$content = file_get_contents("http://www.xe.com/ucc/convert.cgi?From=" .$_GET['from']. "&To=" .$_GET['to']. "&Amount=" .$_GET['amount']. "&template=pca-xetrade");
 
//Define the HTML code we have to break down with a uniqe peice of HTML code found in that page.
$content = explode('<TABLE BORDER=0 CELLPADDING=3 CELLSPACING=0>',$content);
 
//We will get rid of this line to get rid of the left over code above the bits we want to get to.
$content = str_replace('<TD VALIGN=MIDDLE ALIGN=RIGHT><FONT FACE="Arial,Helvetica"><B>', "", "$content[1]");
 
//Once again defining our way to the final converted number...
$content = explode('<TD COLSPAN=3 ALIGN=CENTER><FONT FACE="Arial,Helvetica" SIZE=-2>',$content);
 
//Remove every bit of HTML code left that isn't numeric!
$toremove = array("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", ">", "<", "\"", "\'", "=", ",", "/", "-1");
$content = str_replace($toremove, "", "$content[0]");
 
//Final thing to remove, Woo Hoo! We will use '+1' to sperate the two numeric values of the two currencys.
$final = explode('+1',$content);
 
//Make the currency codes in upper case...
$from_code = strtoupper($_GET['from']);
$to_code = strtoupper($_GET['to']);
 
//The final conversion
echo '<b>' .$final[0]. ' ' .$from_code. ' =' .$final[1]. ' ' .$to_code. '</b>';
 
?>  

Feel free to make comments on my messy code. :p.

It works great and isn't as slow as I expected it would be, it's actally quite fast...

Enjoy!

- Shane.

[parabola]

Thanks, but the reason i wanted to set the amount is because people may try and cheat me out of money by saying "But the exchange rate was number that day"

When it could be something else.

[Shane]

Thanks, but the reason i wanted to set the amount is because people may try and cheat me out of money by saying "But the exchange rate was number that day"

When it could be something else.

So, is that script I made what you needed?

[parabola]

Is it possible to make it email an address with their IP and the converted rate? So when they pay I can check they payed the proper amount.

[Shane]

Sure it's possible.

But wait, do you know any PHP? :p. You should be able to do some of this yourself if you know a bit, if you don't you should learn some basics :D.

[parabola]

Ahh I know a tincy bit. This is basically advanced for me :P

[Shane]

Ahh I know a tincy bit. This is basically advanced for me :P

Ok, lol. Well I still don't understand exactly what you need done... what is it for exactly?