PHP Set Menu Active and Dropdown Open by Ngekoding

// I use this helper in CodeIgniter
// AdminLTE 3 template
// You can use for another reason

if ( ! function_exists('set_active'))
{
    function set_active($urls)
    {
        $_ci =& get_instance();

        $urls = explode(',', $urls);
        foreach ($urls as $url) {
            $ex_url = explode('/', $url);
            $seg = 1;
            $status = TRUE;
            if (count($ex_url) > 1) {
                foreach ($ex_url as $part) {
                    $segment = $_ci->uri->segment($seg++);
                    if ($segment != $part) $status = FALSE;
                }
            } else {
                $segs = '';
                while (!empty($_ci->uri->segment($seg))) {
                    $segs .= $_ci->uri->segment($seg).'/';
                    $seg++;
                }
                $segs = rtrim($segs, '/');
                if ($ex_url[0] != $segs) $status = FALSE;
                // var_dump('SEG: '.$segs);
            }
            if ($status) break;
        }
        if ($status) return 'active';
        return '';
    }
}

if ( ! function_exists('set_menu_open'))
{
    function set_menu_open($urls, $exact = FALSE)
    {
        $cur_url = uri_string();
        $urls = explode(',', $urls);
        foreach ($urls as $url) {
            if (($exact && $cur_url == $url) || (strpos($cur_url, $url) !== FALSE) && !$exact) {
                return 'menu-open';
            }
        }
        return '';
    }
}