问题
I'm using on money_format with the first parameter being '%n' to include the dollar sign, and I have the locale set to en_US but it still doesn't include it. Why?
回答1:
From the PHP.net comment:
If money_format doesn't seem to be working properly, make sure you are defining a valid locale. For example, on Debian, 'en_US' is not a valid locale - you need 'en_US.UTF-8' or 'en_US.ISO-8559-1'.
This was frustrating me for a while. Debian has a list of valid locales at /usr/share/i18n/SUPPORTED; find yours there if it's not working properly.
来源：https://stackoverflow.com/questions/4158517/php-money-format