public function getRates()
{
$file = file_get_contents(self::URL);
$xml = new \SimpleXMLElement($file);
Rates::setRate('EUR', 1);
foreach ($xml->Cube->Cube->Cube as $item) {
$currency = (string) $item->attributes()->currency;
$rate = (double) $item->attributes()->rate;
if (isset($currency) && isset($rate)) {
Rates::setRate($currency, $rate);
}
}
}
/**
* @param float $amountFrom
* @param string $CurrencyFrom
* @param string $CurrencyTo
*/
public function calculate($amountFrom, $CurrencyFrom, $CurrencyTo)
{
$ratioFrom = Rates::getRate($CurrencyFrom);
$ratioTo = Rates::getRate($CurrencyTo);
//Set amount 1 if less than zero was set
$amountFrom = $amountFrom > 0 ? $amountFrom : 1;
if ($ratioFrom <= 0 && $ratioTo <= 0) {
throw new \OutOfRangeException('No information about current rates');
}
$this->amount = round($amountFrom * ($ratioTo / $ratioFrom), 4);
$this->rateTo = round($ratioTo / $ratioFrom, 4);
$this->rateFrom = round($ratioFrom / $ratioTo, 4);
}