如何从PHP Intl(ICU库)获取默认货币 [英] How to get the default currency from the PHP Intl ( ICU library )

问题描述

我使用PHP，想知道如何通过国际化扩展(ICU库的包装器)获取语言环境的默认货币?

I use PHP, and like to know how I can get the default currency for a locale via the Internationalization extension (Wrapper for the ICU library)?

下面是一个脚本，解释了什么，为什么以及为什么. 我需要一些东西来替换getCurrCode()函数.

Below is a script that explains, what and why. I need something to replace the getCurrCode() function with.

$accepted_currencies = array('USD','EUR');
$locale = Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
if( ! empty($locale)){
    Locale::setDefault($locale);
    $currency = getCurrCode();
    if( ! in_array($currency, $accepted_currencies)){
        $currency = 'USD';
    }
}else{
    Locale::setDefault('en_US');
}

$fmt = new NumberFormatter( $locale, NumberFormatter::CURRENCY );
$price = $fmt->formatCurrency(1234567.891234567890000, $currency);

我知道，我可以使用setlocale(LC_MONETARY, $locale);，但这意味着我必须将所有语言环境都安装到Linux上，并处理Linux发行版的变化.那么首先使用Intl的意义何在?

I know, I could use setlocale(LC_MONETARY, $locale); but that means I have to install all the locale's on to Linux, and deal with the variation of the Linux distros. What would then be the point of using Intl at the first place?

推荐答案

将语言环境设置为NumberFormatter后，您可以使用

Once you set the Locale to the NumberFormatter, you can fetch the Currency Code with

$formatter = new NumberFormatter('de_DE', NumberFormatter::CURRENCY);
echo $formatter->getTextAttribute(NumberFormatter::CURRENCY_CODE);

$formatter = new NumberFormatter('en_US', NumberFormatter::CURRENCY);
echo $formatter->getTextAttribute(NumberFormatter::CURRENCY_CODE);

$formatter = new NumberFormatter('ja_JP', NumberFormatter::CURRENCY);
echo $formatter->getTextAttribute(NumberFormatter::CURRENCY_CODE);

以上将给出欧元，美元和日元.

The above would give EUR, USD and JPY.

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