scandir troubles--trying to scan multiple sub sirectories

[RopeADope]

Hi all.

 

I'm trying to build a dynamic multiple tiered navigation menu that operates on the existence of directories.  So far, I have some code that will read through the document root, and one sub level of directories but I'm not sure how to get into the third level of directories.  Here's what I have so far...

 

The code:

      $docroot=scandir($_SERVER['DOCUMENT_ROOT']);

      unset($docroot[array_search('.',$docroot)]);

      unset($docroot[array_search('..',$docroot)]);

      unset($docroot[array_search('php',$docroot)]);

      unset($docroot[array_search('css',$docroot)]);

      unset($docroot[array_search('input_forms',$docroot)]);

      $docroot=array_values($docroot);

      

      //Build tier 1

      echo "<div class=\"tier\">";

      echo "<a href=\"/index.php\">Home</a>";

      foreach($docroot as $value1){

         if(is_dir($value1)){

            $t2=scandir($_SERVER['DOCUMENT_ROOT'] . "/" . $value1);

            unset($t2[array_search('.',$t2)]);

            unset($t2[array_search('..',$t2)]);

            $t2=array_values($t2);

            $t1[]=$t2;

            

            echo "<a href=\"/$value1/\">";

            $value1=str_replace("_"," ",$value1);

            $value1=ucwords($value1);

            echo $value1;

            echo "</a>";

         }

      }

      echo "</div>";

 

The output:

[it automatically builds the first tier of the menu with some stylesheet definitions and places it here.  I did this just for testing purposes.]
Array
(
    [0] => Array
        (
            [0] => bus_mgmt_context.pdf
            [1] => financial_management
            [2] => index.php
            [3] => nav.php
            [4] => service_level_management
            [5] => service_portfolio
            [6] => workforce_management
        )

    [1] => Array
        (
            [0] => element_inventory
            [1] => index.php
            [2] => mobile_administration
            [3] => monthly_bill_review
            [4] => nav.php
        )

    [2] => Array
        (
            [0] => business_it_requests
            [1] => change_management
            [2] => demand_management_context.pdf
            [3] => index.php
            [4] => nav.php
            [5] => project_management
            [6] => release_management
        )

    [3] => Array
        (
            [0] => availability_management
            [1] => capacity_management
            [2] => configuration_management
            [3] => index.php
            [4] => nav.php
            [5] => planning
            [6] => problem_management
            [7] => system_planning
        )

    [4] => Array
        (
            [0] => context
            [1] => input
            [2] => reports
            [3] => sop
            [4] => t3.php
            [5] => video
        )

    [5] => Array
        (
            [0] => executive_reports
            [1] => index.php
            [2] => kpi_index
            [3] => nav.php
        )

    [6] => Array
        (
            [0] => compliance
            [1] => hipaa_definitions.pdf
            [2] => index.php
            [3] => information_security
            [4] => nav.php
            [5] => risk_context.pdf
            [6] => service_continuity
            [7] => threat_management
        )

    [7] => Array
        (
            [0] => incident_management
            [1] => index.php
            [2] => nav.php
            [3] => release_management
            [4] => service_desk
            [5] => service_requests
            [6] => supplier_management
        )

)

[RopeADope]

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