upload script: grupper

<?php
$MAX_SIZE = 2000000;
                                       
$FILE_EXTS  = array('.zip','.jpg','.png','.gif','.doc','.bmp','.rar','.txt'); 

$DELETABLE  = true;                               

/************************************************************
 *     Setup variabler
 ************************************************************/
$site_name = $_SERVER['HTTP_HOST'];
$url_dir = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']);
$url_this =  "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];

$upload_dir = "files/";
$upload_url = $url_dir."/files/";
$message ="tak";

/************************************************************
 *     Lav Upload mappe
 ************************************************************/
if (!is_dir("files")) {
  if (!mkdir($upload_dir))
  	die ("upload_files directory doesn't exist and creation failed");
  if (!chmod($upload_dir,0755))
  	die ("change permission to 755 failed.");
}

/************************************************************
 *     Uploading
 ************************************************************/
if ($_REQUEST[del] && $DELETABLE)  {
  $resource = fopen("log.txt","a");
  fwrite($resource,date("Ymd h:i:s")."DELETE - $_SERVER[REMOTE_ADDR]"."$_REQUEST[del]\\n");
  fclose($resource);
  
  if (strpos($_REQUEST[del],"/.")>0);                  //possible hacking
  else if (strpos($_REQUEST[del],$upload_dir) === false); //possible hacking
  else if (substr($_REQUEST[del],0,6)==$upload_dir) {
    unlink($_REQUEST[del]);
    print "<script>window.location.href='$url_this?message=Slettet!'</script>";
  }
}
else if ($_FILES['userfile']) {
  $resource = fopen("log.txt","a");
  fwrite($resource,date("Ymd h:i:s")."UPLOAD - $_SERVER[REMOTE_ADDR]"
            .$_FILES['userfile']['name']." "
            .$_FILES['userfile']['type']."\\n");
  fclose($resource);

  $file_type = $_FILES['userfile']['type']; 
  $file_name = $_FILES['userfile']['name'];
  $file_ext = strtolower(substr($file_name,strrpos($file_name,".")));

  //File Size Check
  if ( $_FILES['userfile']['size'] > $MAX_SIZE) 
     $message = "The file size is over 2MB.";
  //File Extension Check
  else if (!in_array($file_ext, $FILE_EXTS))
     $message = "Sorry, $file_name($file_type) is not allowed to be uploaded.";
  else
     $message = do_upload($upload_dir, $upload_url);
  
  print "<script>window.location.href='$url_this?message=$message'</script>";
}
else if (!$_FILES['userfile']);
else 
	$message = "Invalid File Specified.";

/************************************************************
 *     List Filer
 ************************************************************/
$handle=opendir($upload_dir);
$filelist = array();

while ($file = readdir($handle)) {
  if(!is_dir($file) && !is_link($file)) {
    $ext=pathinfo($file);
    $ext=$ext['extension'];
    if(!isset($filelist[$ext])){
      $filelist[$ext]=array();
    }
    $str="<a href='$upload_dir$file'>".$file."</a> - URL: <b>$upload_url$file</b>";
    
    $str.= " Tilføjet den  ".date("d-m H:i",filemtime($upload_dir.$file))."";
    if($DELETABLE)
      $str .= " <a style='text-decoration:none; font-weight:bold'  href='?del=$upload_dir".urlencode($file)."' title='Slet'>x</a>";
    $str.="<br>";
    $filelist[$ext][]=$str;
  }
}
$htmllist="";
foreach($filelist as $ext=>$value){
  $htmllist.=$ext."<br>";
  foreach($value as $filstr){
    $htmllist.=$filstr;
  }
}


function do_upload($upload_dir, $upload_url) {

	$temp_name = $_FILES['userfile']['tmp_name'];
	$file_name = $_FILES['userfile']['name']; 
  $file_name = str_replace("\\","",$file_name);
  $file_name = str_replace("'","",$file_name);
	$file_path = $upload_dir.$file_name;

	//File Name Check
  if ( $file_name =="") { 
  	$message = "Invalid File Name Specified";
  	return $message;
  }

  $result  =  move_uploaded_file($temp_name, $file_path);
  if (!chmod($file_path,0777))
   	$message = "change permission to 777 failed.";
  else
    $message = ($result)?"$file_name was uploaded successfully." :
     	      "Something is wrong with uploading the file.";
  return $message;
}

?>

<html>
<head>
<title>Uploading</title>
<link rel=stylesheet href=style.css>
</head>
<body>
<br><br>
<center>
   <font color=red><?=$_REQUEST[message]?></font>
   <br>
   <form name="upload" id="upload" ENCTYPE="multipart/form-data" method="post">
     Upload Fil <input type="file" id="userfile" name="userfile">
     <input type="submit" name="upload" value="Upload">
   </form>
   
   <br><b><u>Uploaded files:</b></u><br><br>

   <?=$htmllist?>
   </sup></small>
</center>

$handle=opendir($upload_dir);
$filelist = array();

while ($file = readdir($handle)) {
if(!is_dir($file) && !is_link($file)) {
$ext=pathinfo($file);
$ext=$ext['extension'];
if(!isset($filelist[$ext])){
$filelist[$ext]=array();
}
$str="<a href='$upload_dir$file'>".$file."</a> - URL: <b>$upload_url$file</b>";
if($DELETABLE)
$str.= " Tilføjet den ".date("d-m H:i",filemtime($upload_dir.$file))."";
$str .= " <a style='text-decoration:none; font-weight:bold' href='?del=$upload_dir".urlencode($file)."' title='Slet'>x</a>";
$filelist .="<br>";
$filelist[$ext][]=$str;
}
}
$htmllist="";
foreach($filelist as $ext=>$value){
$htmllist.=$ext."<br>";
foreach($value as $filstr){
$htmllist.=$filstr;
}
}

må jeg bede dig om at sætte det ind i min kode så jeg kan se hvordan?

Hvis du kigger efter, kan du se at det bare er en opdateret version af din fil-visningskode