Array
(
    [0] => ./mdirectory01
    [1] => ./mdirectory01/sdirectory01
    [2] => ./mdirectory01/sdirectory02
    [3] => ./mdirectory01/sdirectory03
    [4] => ./mdirectory02
    [5] => ./mdirectory02/sdirectory01
    [6] => ./mdirectory02/sdirectory02
)

<ul>
	[*]mdirectory01
		<ul>
			[*]sdirectory01
			[*]sdirectory02
			[*]sdirectory03
		[/list]	
	[*]mdirectory02
		<ul>
			[*]sdirectory01
			[*]sdirectory02
		[/list]	[/list]

   $path="./";
                                                                                                                            
       readdirectory($path);
       function readdirectory($path)
       {
               $level=getLevel($path);
               if (!file_exists($path)) echo "not an existing directory";
               if (!is_dir($path)) echo $path." isnt a directory";
                                                                                                                            
               $main_dir =opendir ($path) or die("Error reading ".$path);
               $i=0;
               while ($entry=readdir($main_dir))
               {
                       if (filetype($path."/".$entry)=="dir") {
                               if($entry!="inc" and  $entry!="." and  $entry!=".."){
                                       for($counter=0;$counter<=$level;$counter++){    echo "\t";      }
                                       echo "[*]".$entry."\n";
                                       readdirectory($path."/".$entry);
									   echo "\t\n";
                               }
                       }
                     /*    else if(filetype($path."/".$entry)=="file") {
                               for($counter=0;$counter<=$level;$counter++){    echo "\t";      }
                               echo "File : ".$entry."\tLevel:".$level."\n";
                       }*/
                                                                                                                            
               }
       }
function getLevel($path) {
                       str_replace("//","/",$path);
                       $num=substr_count($path,"/");
                       return $num-1;
               }