adlerka.top/lib/navpages.php

<?php

function generateNavigation($static_page_dir, $protocol, $subdomain, $domain, $tld, $default_page, $page_name)
{
    $navsite_template = '<li class="navsite_item"><a href="__LOCATION__" __CLASS__>__NAME__</a><ul class="navpage_list">__NAVPAGES__</ul></li>';
    $navpage_template = '<li class="navpage_item"><a href="__LOCATION__" __CLASS__>__NAME__</a></li>';

    $site_dirs = array_diff(scandir($static_page_dir), array('.', '..'));

    $nav_out = "";

    foreach ($site_dirs as $site_dir) {
        $pages_dir = array_diff(scandir("$static_page_dir$site_dir"), array('.', '..'));

        $navsite = $navsite_template;
        $site_class = "class=\"navsite_link\"";
        $site_name = str_replace("_", " ", $site_dir);
        if ($site_name == "global") {
            $site_name = "misc";
            $site_dir = $default_page;
        }
        $site_location = "$protocol$site_dir.$domain.$tld/$default_page";
        $navsite = str_replace("__CLASS__", $site_class, $navsite);
        $navsite = str_replace("__LOCATION__", $site_location, $navsite);
        $navsite = str_replace("__NAME__", ucfirst($site_name), $navsite);

        if ($subdomain == $site_dir) {
            //this is the current page
            $site_class = "class=\"navsite_link active\"";
        }

        $navpages = "";
        foreach ($pages_dir as $page_dir) {
            $page_dir = explode(".", $page_dir)[0];
            $navpage = $navpage_template;
            $page_class = "class=\"navpage_link\"";
            if ($subdomain == $site_dir && $page_name == $page_dir) {
                $page_class = "class=\"navpage_link active\"";
            }

            $page_location = "$protocol$site_dir.$domain.$tld/$page_dir";

            $page_name = str_replace("_", " ", $page_dir);
            $page_name = explode(".", $page_name)[0];

            $navpage = str_replace("__CLASS__", $page_class, $navpage);
            $navpage = str_replace("__LOCATION__", $page_location, $navpage);
            $navpage = str_replace("__NAME__", $page_name, $navpage);
            $navpages .= $navpage;
        }
        $navsite = str_replace("__NAVPAGES__", $navpages, $navsite);
        $nav_out .= $navsite;
    }

    return $nav_out;
}

?>