Currency issues

When entering “,” as decimal separator and “.” for thousands, and after that entering a balance for a financial account, the systems makes something totally different of it.
A solution would be to not do this yourself, but let php help you. An example (simplified version from my plugin):

function zero_decimal_currencies() {
   # returns an array of currencies that don't have decimals
   $currency_array = array (
    'BIF',
    'CLP',
    'DJF', 
    'GNF',
    'JPY',
    'KMF',
    'KRW',
    'MGA',
    'PYG',
    'RWF',
    'VND',
    'VUV',
    'XAF',
    'XOF',
    'XPF'
   );
   return $currency_array;
}

   $locale = determine_locale();
   if (class_exists('NumberFormatter'))
           $localize_price=1; 
   else
           $localize_price=0;

   if ($localize_price)
           $formatter = new NumberFormatter( $locale."@currency=$cur", NumberFormatter::CURRENCY );

   $eme_zero_decimal_currencies_arr=zero_decimal_currencies();
   if (in_array($cur,$eme_zero_decimal_currencies_arr))
           $decimals = 0;
   else
           $decimals=2;  // make this an option

   if ($localize_price)
           $result = $formatter->formatCurrency($price, $cur);
   else
           $result = number_format_i18n($price,$decimals);

This way you can keep a mathematical notation and just show a localized version based on currency ($cur) and the current locale.