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CurrencyFormat.php
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CurrencyFormat.php
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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\I18n\View\Helper;
use Locale;
use NumberFormatter;
use Zend\I18n\Exception;
use Zend\View\Helper\AbstractHelper;
/**
* View helper for formatting currency.
*/
class CurrencyFormat extends AbstractHelper
{
/**
* The 3-letter ISO 4217 currency code indicating the currency to use
*
* @var string
*/
protected $currencyCode;
/**
* Formatter instances
*
* @var array
*/
protected $formatters = array();
/**
* Locale to use instead of the default
*
* @var string
*/
protected $locale;
/**
* Currency pattern
*
* @var string
*/
protected $currencyPattern;
/**
* If set to true, the currency will be returned with two decimals
*
* @var bool
*/
protected $showDecimals = true;
/**
* @throws Exception\ExtensionNotLoadedException if ext/intl is not present
*/
public function __construct()
{
if (!extension_loaded('intl')) {
throw new Exception\ExtensionNotLoadedException(sprintf(
'%s component requires the intl PHP extension',
__NAMESPACE__
));
}
}
/**
* Format a number
*
* @param float $number
* @param string $currencyCode
* @param bool $showDecimals
* @param string $locale
* @param string $pattern
* @return string
*/
public function __invoke(
$number,
$currencyCode = null,
$showDecimals = null,
$locale = null,
$pattern = null
) {
if (null === $locale) {
$locale = $this->getLocale();
}
if (null === $currencyCode) {
$currencyCode = $this->getCurrencyCode();
}
if (null === $showDecimals) {
$showDecimals = $this->shouldShowDecimals();
}
if (null === $pattern) {
$pattern = $this->getCurrencyPattern();
}
return $this->formatCurrency($number, $currencyCode, $showDecimals, $locale, $pattern);
}
/**
* Format a number
*
* @param float $number
* @param string $currencyCode
* @param bool $showDecimals
* @param string $locale
* @param string $pattern
* @return string
*/
protected function formatCurrency(
$number,
$currencyCode,
$showDecimals,
$locale,
$pattern
) {
$formatterId = md5($locale);
if (!isset($this->formatters[$formatterId])) {
$this->formatters[$formatterId] = new NumberFormatter(
$locale,
NumberFormatter::CURRENCY
);
}
if ($pattern !== null) {
$this->formatters[$formatterId]->setPattern($pattern);
}
if ($showDecimals) {
$this->formatters[$formatterId]->setAttribute(NumberFormatter::FRACTION_DIGITS, 2);
} else {
$this->formatters[$formatterId]->setAttribute(NumberFormatter::FRACTION_DIGITS, 0);
}
return $this->formatters[$formatterId]->formatCurrency(
$number, $currencyCode
);
}
/**
* The 3-letter ISO 4217 currency code indicating the currency to use
*
* @param string $currencyCode
* @return CurrencyFormat
*/
public function setCurrencyCode($currencyCode)
{
$this->currencyCode = $currencyCode;
return $this;
}
/**
* Get the 3-letter ISO 4217 currency code indicating the currency to use
*
* @return string
*/
public function getCurrencyCode()
{
return $this->currencyCode;
}
/**
* Set the currency pattern
*
* @param string $currencyPattern
* @return CurrencyFormat
*/
public function setCurrencyPattern($currencyPattern)
{
$this->currencyPattern = $currencyPattern;
return $this;
}
/**
* Get the currency pattern
*
* @return string
*/
public function getCurrencyPattern()
{
return $this->currencyPattern;
}
/**
* Set locale to use instead of the default
*
* @param string $locale
* @return CurrencyFormat
*/
public function setLocale($locale)
{
$this->locale = (string) $locale;
return $this;
}
/**
* Get the locale to use
*
* @return string|null
*/
public function getLocale()
{
if ($this->locale === null) {
$this->locale = Locale::getDefault();
}
return $this->locale;
}
/**
* Set if the view helper should show two decimals
*
* @param bool $showDecimals
* @return CurrencyFormat
*/
public function setShouldShowDecimals($showDecimals)
{
$this->showDecimals = (bool) $showDecimals;
return $this;
}
/**
* Get if the view helper should show two decimals
*
* @return bool
*/
public function shouldShowDecimals()
{
return $this->showDecimals;
}
}