App\Libraries\Utils::processVariables PHP Метод

    public static function processVariables($str)
    {
        if (!$str) {
            return '';
        }
        $variables = ['MONTH', 'QUARTER', 'YEAR'];
        for ($i = 0; $i < count($variables); $i++) {
            $variable = $variables[$i];
            $regExp = '/:' . $variable . '[+-]?[\\d]*/';
            preg_match_all($regExp, $str, $matches);
            $matches = $matches[0];
            if (count($matches) == 0) {
                continue;
            }
            usort($matches, function ($a, $b) {
                return strlen($b) - strlen($a);
            });
            foreach ($matches as $match) {
                $offset = 0;
                $addArray = explode('+', $match);
                $minArray = explode('-', $match);
                if (count($addArray) > 1) {
                    $offset = intval($addArray[1]);
                } elseif (count($minArray) > 1) {
                    $offset = intval($minArray[1]) * -1;
                }
                $val = Utils::getDatePart($variable, $offset);
                $str = str_replace($match, $val, $str);
            }
        }
        return $str;
    }