Currency converter api

currency.php

<?php
function convertCurrency($amount, $from, $to){
    $url  = "https://www.google.com/finance/converter?a=$amount&from=$from&to=$to";
    $data = file_get_contents($url);
    preg_match("/<span class=bld>(.*)<\/span>/",$data, $converted);
    $converted = preg_replace("/[^0-9.]/", "", $converted[1]);
    return round($converted, 3).' '.$to;
}

echo convertCurrency(1000, "USD", "MGA");
echo '<br />';
echo convertCurrency(1000, "EUR", "MGA");
?>