国际化之货币符号显示

我发现手机上显示的货币符号跟实际遇到的可能不一样，为此我逐一查询了不同国家/地区的显示。大部分是确定的，有几个国家不太确定。

最开始我用 Java 代码来获取，发现并不准确，比如菲律宾，官方有英语和菲律宾语，我都试了，得到都是 PHP xxx，PHp xxx 不符合预期。代码如下：

package com.tutorialspoint;

import java.util.*;
import java.text.SimpleDateFormat;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Locale;

public class CurrencyDemo {
   public static void main(String args[]) {
        /*
      // create a currency object with specified locale
      Locale locale = Locale.GERMANY;
      Currency curr = Currency.getInstance(locale);

      // print currency's code
      System.out.println("Locale's currency code:" + curr.getCurrencyCode());
      */
      
      
        
        double number = 123456.789;
        
        // https://developer.android.com/reference/java/util/Locale#fields_2
        Locale[] locales = {
            Locale.CANADA, 
            Locale.CANADA_FRENCH,
            Locale.CHINA,
            Locale.FRANCE,
            Locale.GERMANY,
            Locale.ITALY, 
            Locale.JAPAN,
            Locale.KOREA,
            Locale.PRC,
            Locale.SIMPLIFIED_CHINESE,
            Locale.TAIWAN,
            Locale.TRADITIONAL_CHINESE,
            Locale.UK,
            Locale.US,
            new Locale("en", "IN"),
            new Locale("en", "CA"),
            new Locale("zh", "HK"),
            new Locale("zh", "MO"),
            new Locale("zh", "SG"),
            new Locale("en", "SG"),
            new Locale("th", "TH"),
            new Locale("vi", "VN"),
            new Locale("ja", "JP"),
            new Locale("ga", "IE"),
            new Locale("ms", "MY"),
            new Locale("fil", "PH"),
            new Locale("en", "AU"),
            new Locale("km", "KH"),
            new Locale("id", "ID"),
            new Locale("es", "ES"),
        };
        
        // locales = SimpleDateFormat.getAvailableLocales();

        for (int i = 0; i < locales.length; i++) {
            // Gets currency's formatted value for each locale
            // without change the currency symbol
            DecimalFormat formatter = (DecimalFormat) NumberFormat.getCurrencyInstance(locales[i]);
            String before = formatter.format(number);
            
            System.out.println(locales[i].getDisplayCountry() + " | before: " + before);
        }
   }
}