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<?php
/**
* User: alec
* Date: 05.11.18
* Time: 20:27
*/
namespace AlecRabbit\Currency;
use AlecRabbit\Currency\Contracts\CurrencyInterface;
class Currency implements CurrencyInterface, \JsonSerializable
{
private const _CODE_LENGTH = 9;
/** @var string */
private $code;
* @param string $code
public function __construct(string $code)
if (\strlen($code) > static::_CODE_LENGTH) {
throw new \InvalidArgumentException('Currency code must be not longer then ' . static::_CODE_LENGTH);
}
$this->code = strtoupper($code);
* Checks whether this currency is the same as an other.
*
* @param Currency $currency
* @return bool
public function equals(Currency $currency): bool
return $this->code === $currency->code;
* @return string
public function __toString()
return $this->getCode();
* Returns the currency code.
public function getCode(): string
return $this->code;
* {@inheritdoc}
public function jsonSerialize(): string
alecrabbit /
twrb-php-components
