Conditional currency decimals formatting with NumberFormatter

Question

Is there a way to format currency conditionally depending on number of decimals? For example :

CHF 1'200.00 becomes CHF 1'200.-

CHF 1'200.2 becomes CHF 1'200.20

CHF 1'200.20 becomes CHF 1'200.20

MIN_FRACTION_DIGITS attribute will set it all to .00, which solves 2nd and 3rd case, but will not solve the first one.

  $formatter->setAttribute(\NumberFormatter::MIN_FRACTION_DIGITS, 2);

Is there a way to do that? Or at least format decimals as subscript, for example?

Answer 1

The only way I see is to set the settings for the NumberFormatter based on a condition and then adding .- if the result is a whole number.

// Check if we have a decimal that isn't .00 and adjust settings accordingly.
if (round($value, 2) == round($value, 0)) {
    $formatter->setAttribute(\NumberFormatter::MAX_FRACTION_DIGITS, 0);
} else {
    $formatter->setAttribute(\NumberFormatter::MAX_FRACTION_DIGITS, 2);
}

// Format the number
$formattedValue = $formatter->formatCurrency($value, 'CHF');

// Add '.-' if we have a whole number.
if (strpos($formattedValue, '.') === false) {
    $formattedValue .= '.-';
}

This should cover the cases in your question:

• 1200.00 -> CHF 1'200.-
• 1200 -> CHF 1'200.-
• 1200.20 -> CHF 1'200.20
• 1200.2 -> CHF 1'200.20