PHP NumberFormatter parseCurrency返回false

Question

我试着这样做：

 public static function money($str)
    {
        $currency = 'BRL';
        $formatter = new \NumberFormatter('pt_BR', \NumberFormatter::CURRENCY);

        return $formatter->parseCurrency($str, $currency);
    }

我尝试将"R$ 123,45“这样的字符串解析为"123.45"，但每次都返回false。

根据ISO4217，BRL是巴西货币的代码：https://en.wikipedia.org/wiki/ISO_4217

我做错了什么？

Answer 1

这应该是可行的

 public function currency($str, $currency = 'BRL')
 {
     // use of NumberFormatter from extension //

     $formatter = new \NumberFormatter('pt_BR', \NumberFormatter::CURRENCY);
     return $formatter->formatCurrency($str, $currency);
 }