/**
* Converts an amount from one currency to another
*
* @param float $amount
* @param str $currencyFrom
* @param str $currencyTo
* @return boolean
*/
function convert($currencyFrom, $currencyTo = 'USD', $amount = '1', $refresh = false)
{
static $rates;
if (!is_array($rates)) {
$rates = array();
}
if (empty($rates[$currencyFrom]) || !is_array($rates[$currencyFrom])) {
$rates[$currencyFrom] = array();
}
if (empty($rates[$currencyFrom][$currencyTo])) {
// get the exchange rate, and let the getexchange rate method handle refreshing the cache
$rates[$currencyFrom][$currencyTo] = DSCHelperCurrency::getExchangeRate($currencyFrom, $currencyTo, $refresh);
}
$exchange_rate = $rates[$currencyFrom][$currencyTo];
// convert the amount
$return = $amount * $exchange_rate;
return $return;
}
