function hdq_add_shortcode_random_Tamas($atts)
{
    // Attributes
    extract(
        shortcode_atts(
            array(
                'quizzes' => null,
            ),
            $atts
        )
    );

    $quiz = 0;
    if ($quizzes === null) {
        // get random quiz. Not included for this demo
    } else {
        // get random id from attr
        $quizzes = explode(",", $quizzes);
        $quiz = $quizzes[array_rand($quizzes, 1)];
    }
	
    // Code
    ob_start();	
	include plugin_dir_path(__DIR__). '../plugins/hd-quiz/includes/template.php';
    return ob_get_clean();
}
add_shortcode('HDQRandom', 'hdq_add_shortcode_random_Tamas');