在树枝上显示货币符号 [英] Displaying currency symbol in twig

问题描述

如何在树枝中显示货币符号？我将符号的数值保存为：

How can I display the currency symbol in twig? I saved the numeric value of the symbol like:

for EURO : €
for DOLLAR: $

渲染这些值时，& 被转换为& 并且货币符号不显示。任何想法将不胜感激。谢谢。

When I render these values, & is converted to & and the currency symbol does not show. Any idea will be greatly appreciated. Thank you.

推荐答案

要做到这一点，您必须添加功能或过滤器，它被称为在树枝模板中呈现货币符号的帮助器。

To do it well, you've to add a function or a filter which is called as a helper to render currency symbols within your twig templates.

要使用以下功能，

{{ currency('en_US') }}

您必须如下添加 twig扩展，

xxx.twig.your_extension:
    class: XXX\YourBundle\Twig\YourExtension
    tags:
        - { name: twig.extension }

您需要添加一个 currency 函数，

namespace XXX\YourBundle\Twig;

class YourExtension extends \Twig_Extension
{
    public function getFunctions() {
        return array(
            'currency' => new \Twig_Function_Method($this, 'currencyFunction'),
        );
    }

    public function currencyFunction($locale) {
        $formatter = new \NumberFormatter($locale, \NumberFormatter::CURRENCY);
        $symbol = $formatter->getSymbol(\NumberFormatter::CURRENCY_SYMBOL);

        return $symbol;
    }

    public function getName() {
        return 'your_extension';
    }
}

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