Worpress Shortcode template include

functions.php

add_shortcode('template', function ($templates = array()) {
    $templates_render_result = '';

    foreach ($templates AS $key => $template)
    {
        if (is_numeric($key) AND $template)
        {
            $template = sanitize_file_name($template);

            if ($template_path = get_template_directory() . "/parts/templates/$template.html" AND is_readable($template_path))
            {
                ob_start();
                load_template($template_path, false);
                $templates_render_result = ob_get_clean();
            }
        }
    }

    return do_shortcode($templates_render_result);
});