Dollar.php

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<?php
 
namespace PhpOffice\PhpSpreadsheet\Calculation\Financial;
 
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use PhpOffice\PhpSpreadsheet\Calculation\TextData\Format;
 
class Dollar
{
    public static function format($number, $precision = 2): string
    {
        return Format::DOLLAR($number, $precision);
    }
 
    public static function decimal($fractionalDollar = null, $fraction = 0)
    {
        $fractionalDollar = Functions::flattenSingleValue($fractionalDollar);
        $fraction = (int) Functions::flattenSingleValue($fraction);
 
        // Validate parameters
        if ($fractionalDollar === null || $fraction < 0) {
            return Functions::NAN();
        }
        if ($fraction == 0) {
            return Functions::DIV0();
        }
 
        $dollars = floor($fractionalDollar);
        $cents = fmod($fractionalDollar, 1);
        $cents /= $fraction;
        $cents *= 10 ** ceil(log10($fraction));
 
        return $dollars + $cents;
    }
 
    public static function fractional($decimalDollar = null, $fraction = 0)
    {
        $decimalDollar = Functions::flattenSingleValue($decimalDollar);
        $fraction = (int) Functions::flattenSingleValue($fraction);
 
        // Validate parameters
        if ($decimalDollar === null || $fraction < 0) {
            return Functions::NAN();
        }
        if ($fraction == 0) {
            return Functions::DIV0();
        }
 
        $dollars = floor($decimalDollar);
        $cents = fmod($decimalDollar, 1);
        $cents *= $fraction;
        $cents *= 10 ** (-ceil(log10($fraction)));
 
        return $dollars + $cents;
    }
}