GcContent\Controller\DocumentController::checkUrlKey PHP Method

    protected function checkUrlKey($string)
    {
        $charMap = array('Š' => 'S', 'š' => 's', 'Ð' => 'Dj', 'Ž' => 'Z', 'ž' => 'z', 'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Ä' => 'Ae', 'Å' => 'A', 'Æ' => 'A', 'Ç' => 'C', 'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E', 'Ì' => 'I', 'Í' => 'I', 'Î' => 'I', 'Ï' => 'I', 'Ñ' => 'N', 'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ö' => 'Oe', 'Ø' => 'O', 'Ü' => 'Ue', 'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ý' => 'Y', 'Þ' => 'B', 'ß' => 'ss', 'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => 'ae', 'å' => 'a', 'æ' => 'a', 'ç' => 'c', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e', 'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i', 'ð' => 'o', 'ñ' => 'n', 'ò' => 'o', 'ó' => 'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'oe', 'ø' => 'o', 'ü' => 'ue', 'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ý' => 'y', 'ý' => 'y', 'þ' => 'b', 'ÿ' => 'y', 'ƒ' => 'f', 'Ŕ' => 'R', 'ŕ' => 'r');
        $string = strtr(mb_strtolower($string, 'utf-8'), $charMap);
        $string = preg_replace('~[^a-zA-Z0-9-]~', '-', $string);
        return $string;
    }