private static function createFunctionInMemory(string $string): void
    {
        $file_name = getmypid() . '_' . md5($string);

        $tmp_path  = JFactory::getApplication()->get('tmp_path', JPATH_ROOT . '/tmp');
        $temp_file = $tmp_path . '/regularlabs/custom_php/' . $file_name;

        // Write file
        if ( ! file_exists($temp_file) || is_writable($temp_file))
        {
            JFile::write($temp_file, $string);
        }

        // Include file
        include_once $temp_file;

        // Delete file
        if ( ! JFactory::getApplication()->get('debug'))
        {
            @chmod($temp_file, 0777);
            @unlink($temp_file);
        }
    }