Defining cross-platform money_format function (Linux and Windows)

The function money_format() is only defined if the system has strfmon capabilities. For example, Windows does not, so money_format() is undefined in Windows.

So you can use this php code:

setlocale(LC_ALL, ''); // Locale will be different on each system.
$amount = 1000000.97;
$locale = localeconv();
echo $locale['currency_symbol'], number_format($amount, 2, $locale['decimal_point'], $locale['thousands_sep']);

With this you can write code that is actually portable instead of relying on operating system features. Having the money_format function available in PHP without it being an extension is pretty stupid. I don’t see why you would want to create inconsistencies like this between different operating systems in a programming language