Ich wollt fragen ob es möglich wäre bei diesem Skript unter meinem Text einen Schutz reinzumachen der nur .gif und .jpg und .jpeg und viell. noch andere erlaubt?
Das Skript find ich halt übersichtlich und alles wäre net für Hilfe 
THXCode: Alles auswählen
<?php
// CSS-Style:
$cssstyle =
'<style type="text/css"><!--
a:link{color:#000000;}
a:visited{color:#999999;}
a:hover{color:#999999;}
a:active{color:#f999999;}
--></style>';
//**************************************************************
// Programm:
//**************************************************************
echo "$cssstyle";
// Links on Top
head();
// Startsite
// Get $path & $action
if ($SubmitDir || $SubmitUpload)
{$path = $chosenpath;}
else
{$path = $_GET["path"];}
$action = $_GET["action"];
// choose downloadpath
if ($action == "download" && $path == '')
{
$all_dirs = get_all_dirs();
choose_download_dir($all_dirs);
}
// choose downloadfile
if ($action == "download" && $path != '')
{
$all_dirs = get_all_dirs();
choose_download_dir($all_dirs);
$all_files = listen_dir($path);
choose_download($all_files, $path);
}
// choose upload
if ($action == "upload" && !$SubmitUpload)
{
$all_dirs = get_all_dirs();
choose_upload($all_dirs);
}
// do upload
if ($SubmitUpload)
{
upload($path);
}
// Links on bottom
foot();
//**************************************************************
// Functions:
//**************************************************************
function head()
{
echo '
<html>
<head>
<title>Upload/Download</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<font face="tahoma">
<div align="center"> <a href="';
echo "$PHP_SELF";
echo '?action=">Startseite</a> | <a href="';
echo "$PHP_SELF";
echo '?action=download">Download</a>
| <a href="';
echo "$PHP_SELF";
echo'?action=upload">Upload</a> </div>
';
}
function foot()
{
echo '
</font>
</body>
</html>
';
}
function choose_download_dir($all_dirs)
{
echo '<br><div align="center">';
echo "Choose Directory for Download:";
echo '<form name="form1" method="post" action="';
echo "$PHP_SELF?action=download";
echo '">';
echo '<select name="chosenpath">';
for ($i = 0; $i < count($all_dirs); $i++)
{
echo '<option>';
echo "$all_dirs[$i]";
echo '</option>';
}
echo '</select>';
echo ' ';
echo '<input type="submit" name="SubmitDir" value="Choose" class="SB_button">';
echo '</form></div>';
}
function choose_download($all_files, $path)
{
echo '<table width="90%" border="0" align="center" bordercolor="#000000">
<tr>
<td><font face=tahoma size=2><b>Filename:</b></font></td>
<td><font face=tahoma size=2><b>Size:</b></font></td>
<td><font face=tahoma size=2><b>Date:</b></font></td>
</tr>
<tr>
<td><font face=tahoma size=2></font></td>
<td><font face=tahoma size=2></font></td>
<td><font face=tahoma size=2></font></td>
</tr>';
for ($i = 0; $i < count($all_files); $i++)
{
if ($bgcolor == "#CCCCCC") {$bgcolor = "#FFFFFF";}
else {$bgcolor = "#CCCCCC";}
$file = $path . "/" . $all_files[$i];
$file_date = @date("d.m.Y", filemtime($file));
$file_size = (int)(filesize($file)/2048);
if ($file_date == "01.01.1970") {$file_date = "-";}
echo "<tr bgcolor=$bgcolor>
<td><font face=tahoma size=2><a href=$file>$all_files[$i]</a></font></td>
<td><font face=tahoma size=2>$file_size KB</font></td>
<td><font face=tahoma size=2>$file_date</font></td>";
}
echo '</table>';
}
function listen_dir($dir)
{
$dir .= "/";
if (file_exists($dir))
{
!$opendir = opendir($dir);
$i = 0;
while ($file = readdir($opendir))
{
$ext = strrchr($file,'.');
if ($ext != '' && $file != '.' && $file != '..')
{
$all_files[$i] = $file;
$i++;
}
}
closedir($opendir);
return $all_files;
}
}
function get_all_dirs()
{
$verz=opendir ('.');
$i = 0;
while ($file = readdir ($verz))
{
if(is_dir($file) && $file != "." && $file != "..")
{
$all_dirs[$i] = $file;
$i++;
}
}
closedir($verz);
return $all_dirs;
}
function choose_upload($all_dirs)
{
echo '<br><div align="center">';
echo "Choose Directory for Upload:";
echo '<form enctype="multipart/form-data" name="form1" method="post" action="';
echo "$PHP_SELF?action=upload";
echo '">';
echo '<select name="chosenpath">';
for ($i = 0; $i < count($all_dirs); $i++)
{
echo '<option>';
echo "$all_dirs[$i]";
echo '</option>';
}
echo '</select>';
echo '<p>Choose File for Upload:<p>';
for ($i = 0; $i <5; $i++)
{
echo '<input type="file" name="uploadfile';
echo "$i";
echo' "><br>';
}
echo '<p><input type="submit" name="SubmitUpload" value="Upload" class="formbutton">';
echo '</form></div>';
}
function upload($path)
{
echo "<p>";
foreach ($_FILES as $upfile_info) {
if (($file_name=$upfile_info['name'])!='') {
$file_name = stripslashes($file_name);
$file_name = str_replace("'","",$file_name);
$dest_location=$path."/".$file_name;
$ext = strrchr($file_name,'.');
if (!file_exists($dest_location) && ($ext != ".php"))
{
$copy = copy($upfile_info['tmp_name'], $dest_location);
}
else {$MSG = "File already exists or Fileextension not allowed!";}
$type=$upfile_info['type'];
$size=(int)($upfile_info['size']/1024);
$MSG="<b>$dest_location</b> (mime: $type | size: $size KB)";
echo "<div align=center><font size=2>Successfully uploaded file: $MSG</font></div><br>";
}
}
}
?>
wegen den 5 T€uros 
