Znerol\Component\Stringprep\Profile::applyMappingTable PHP Method

    protected static function applyMappingTable($codepoints, $func)
    {
        if (count($codepoints)) {
            return call_user_func_array('array_merge', array_map($func, $codepoints));
        } else {
            return $codepoints;
        }
    }