<?php
use BcMath\Number;

class Dollars {
    private function moneyAsFloat(Number $money): float {
        // Remove any existing currency symbols and thousands separators
        $t = preg_replace('/[^\d.-]/', '', $money);
        return (float)$t;
    }

    public function formatAsUSD(Number $money): string {
        return '$' . number_format($this->moneyAsFloat($money), 2, '.', ',');
    }

    public function intlUSD(Number $money): string {
        if (class_exists('NumberFormatter')) {
            $formatter = new NumberFormatter('en_US', NumberFormatter::CURRENCY);
            return $formatter->formatCurrency($this->moneyAsFloat($money), 'USD');
        }
    }
}