Microweber\Utils\Parser::_str_replace_first PHP Метод

    private function _str_replace_first($search, $replace, $subject)
    {
        if ($search == false || $replace === false) {
            return $subject;
        }
        $pos = strpos($subject, $search);
        if ($pos !== false) {
            $subject = substr_replace($subject, $replace, $pos, strlen($search));
        }
        return $subject;
    }