Something

<?php

include("Thumbnail.php");

$directory = "image/";
$path = $directory.basename($_GET['path']);

if($_GET[''display'] == "image")
{
 echo '<img src="{$path}'.(basename($image)).'">';
}else{

  while (false !== ($entry = $path->read())) {
  if($entry!='.' && $entry!='..' && is_dir($path.$entry))
  {
    echo '<a href="?path={$entry}"><img src="folder.jpg"></a>';
   
  }else if(!@getImageSize($path.$entry) { 
    if(!is_file($path.$entry.".thumb") {
     $img = new Thumbnail($path.$entry);
     $img->save($path.$entry.".thumb");
    }
    echo '<a href="?display=image&img={$entry}&path={$path}">
       <img src="{$path}{$entry}.thumb"></a>';
   } 
  
 }
}
?>