Ruble format #currency #money

ruble_format.php

<?php

/**
 * Formats a number as a ruble currency string for web.
 *
 * @param float $number The number to be formatted.
 * @param int $decimals [optional]
 * @param boolean $trim_zero_decimals [optional]
 * @param boolean $add_currency_suffix [optional]
 * @return string A formatted version of number.
 */
function ruble_format($number, $decimals = 2, $trim_zero_decimals = true, $add_currency_suffix = true) {
    $dec_point = '.';
    $separator = '<span style="padding-left: 0.25em"></span>';
    $text = number_format(floatval($number), $decimals, $dec_point, ' ');
    if ($trim_zero_decimals && $decimals > 0) {
        $text = str_replace($dec_point . str_repeat('0', $decimals), '', $text);
    }
    $html = str_replace(' ', $separator, $text);
    if ($add_currency_suffix) {
        $suffix = '<span class="ruble-sign">rub.</span>';
        $html = "<span style=\"white-space: nowrap\">$html $suffix</span>";
    }
    return $html;
}