Help me with the PHP upload script

[--ss--]

Well first of here's a upload script i'm trying to edit:

                              <?php require('head.php');?>
<center><style>
body {
font-family: Franklin Gothic Book;
font-size: 12px;
font color: #efefef;
}
input {
border: 1px solid #efefef;
font-family: Franklin Gothic Book;
font-size: 12px;
font color: #efefef;
}
img {
border: 1px solid #efefef;
}
</style>
</head>
<form action="upload.php" method="post" enctype="multipart/form-data">
Browse a File to Upload:<br>
<input type="file" name="filetoupload"><br>
<input type="hidden" name="MAX_FILE_SIZE" value="<?echo $size_bytes; ?>">
<br>
<input type="Submit" value="Upload File">
</form>
<?php
$upload_dir = "../danny/dan/"; //change to whatever you want.
// files less than 1MB
$size_bytes = 10000000000; //bytes will be uploaded
$limit_file_type = "no"; //Do you want to limit the types of files uploaded. (yes/no)
// specify file types.
$allowed_file_type = array('image/gif',
'image/jpg');
//check if the directory exist or not.
if (!is_dir("$upload_dir")) {
die ("The directory <b>($upload_dir)</b> doesn't exist");
}
//check if the directory is writable.
if (!is_writeable("$upload_dir")){
die ("The directory <b>($upload_dir)</b> is NOT writable, Please Chmod (777)");
}
//Check first if a file has been selected
//is_uploaded_file('filename') returns true if
//a file was uploaded via HTTP POST. Returns false otherwise.
if (is_uploaded_file($_FILES['filetoupload']['tmp_name']))
{//begin of is_uploaded_file
//Get the Size of the File
$size = $_FILES['filetoupload']['size'];
//Make sure that $size is less than 1MB (1000000 bytes)
if ($size > $size_bytes)
{
echo "File Too Large. File must be <b>$size_bytes</b> bytes.";
exit();
}
//check file type
if (($limit_file_type == "yes") && (!in_array($_FILES['filetoupload']['type'],$allowed_file_type)))
{
echo"wrong file type";
exit();
}
// $filename will hold the value of the file name submetted from the form.
$filename = $_FILES['filetoupload']['name'];
// Check if file is Already EXISTS.
if(file_exists($upload_dir.$filename)){
echo "
<table border='1' style='border-collapse: collapse' bordercolor='#FF0000' bgcolor='#EFEFEF'>
<tr>
<td><font family='Franklin Gothic Book' size='1' color='#FF0000'>$filename already exists on our servers!</font></td>
</tr>
</table>
";
exit();
}
//Move the File to the Directory of your choice
//move_uploaded_file('filename','destination') Moves afile to a new location.
if (move_uploaded_file($_FILES['filetoupload']['tmp_name'],$upload_dir.$filename)) {
//tell the user that the file has been uploaded and make him alink too;).
echo "<img src='$upload_dir$filename'> <br>
Direct link<br>
<input size='60' value='http://www.hhgs.net/danny/dan/$filename'>";
exit();
}
else
{
//Print error
echo "
<table border='1' style='border-collapse: collapse' bordercolor='#FF0000' bgcolor='#EFEFEF'>
<tr>
<td><font family='Franklin Gothic Book' size='1' color='#FF0000'>There was a problem moving your file</font></td>
</tr>
</table>
";
exit();
}
}//end of is_uploaded_file
?>
</center>
<?php require('bottom.php');?>

I want to change it when the server checks if the file exists with this code:

if(file_exists($upload_dir.$filename)) 

instead of echo'ing out the following:

echo "
<table border='1' style='border-collapse: collapse' bordercolor='#FF0000' bgcolor='#EFEFEF'>
<tr>
<td><font family='Franklin Gothic Book' size='1' color='#FF0000'>$filename already exists on our servers!</font></td>
</tr>
</table>
"; 

I want it to delete the file, i've tried replacing it with:

Unlink($upload_dir.$filename) 

But I keep getting several different errors , i'm guessing it all has to be looped or something so either way someone fix it for 49 rep points.

[GoldenMerc]

+ my 24 rep power so 73 rep for this :]

[Invent]

                              <?php require('head.php');?>
<center><style>
body {
font-family: Franklin Gothic Book;
font-size: 12px;
font color: #efefef;
}
input {
border: 1px solid #efefef;
font-family: Franklin Gothic Book;
font-size: 12px;
font color: #efefef;
}
img {
border: 1px solid #efefef;
}
</style>
</head>
<form action="upload.php" method="post" enctype="multipart/form-data">
Browse a File to Upload:<br>
<input type="file" name="filetoupload"><br>
<input type="hidden" name="MAX_FILE_SIZE" value="<?echo $size_bytes; ?>">
<br>
<input type="Submit" value="Upload File">
</form>
<?php
$upload_dir = "../danny/dan/"; //change to whatever you want.
// files less than 1MB
$size_bytes = 10000000000; //bytes will be uploaded
$limit_file_type = "no"; //Do you want to limit the types of files uploaded. (yes/no)
// specify file types.
$allowed_file_type = array('image/gif',
'image/jpg');
//check if the directory exist or not.
if (!is_dir("$upload_dir")) {
die ("The directory <b>($upload_dir)</b> doesn't exist");
}
//check if the directory is writable.
if (!is_writeable("$upload_dir")){
die ("The directory <b>($upload_dir)</b> is NOT writable, Please Chmod (777)");
}
//Check first if a file has been selected
//is_uploaded_file('filename') returns true if
//a file was uploaded via HTTP POST. Returns false otherwise.
if (is_uploaded_file($_FILES['filetoupload']['tmp_name']))
{//begin of is_uploaded_file
//Get the Size of the File
$size = $_FILES['filetoupload']['size'];
//Make sure that $size is less than 1MB (1000000 bytes)
if ($size > $size_bytes)
{
echo "File Too Large. File must be <b>$size_bytes</b> bytes.";
exit();
}
//check file type
if (($limit_file_type == "yes") && (!in_array($_FILES['filetoupload']['type'],$allowed_file_type)))
{
echo"wrong file type";
exit();
}
// $filename will hold the value of the file name submetted from the form.
$filename = $_FILES['filetoupload']['name'];
// Check if file is Already EXISTS.
if(file_exists($upload_dir.$filename)){

chmod($upload_dir.$filename, 0777); // Makes sure file is deletable
unlink($upload_dir.$filename);

}
//Move the File to the Directory of your choice
//move_uploaded_file('filename','destination') Moves afile to a new location.
if (move_uploaded_file($_FILES['filetoupload']['tmp_name'],$upload_dir.$filename)) {
//tell the user that the file has been uploaded and make him alink too;).
echo "<img src='$upload_dir$filename'> <br>
Direct link<br>
<input size='60' value='http://www.hhgs.net/danny/dan/$filename'>";
exit();
}
else
{
//Print error
echo "
<table border='1' style='border-collapse: collapse' bordercolor='#FF0000' bgcolor='#EFEFEF'>
<tr>
<td><font family='Franklin Gothic Book' size='1' color='#FF0000'>There was a problem moving your file</font></td>
</tr>
</table>
";
exit();
}
}//end of is_uploaded_file
?>
</center>
<?php require('bottom.php');?>

That should work..if not, please tell me the error

[GoldenMerc]

I get this at the top

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/hhgsnet/public_html/radiodjpanel/upload.php:1) in /home/hhgsnet/public_html/radiodjpanel/check.php on line 2

But it seems to work?
Not sure if its working properly tho it makes the upload go right down the page

[Invent]

That has nothing to do with the code I posted..?

[GoldenMerc]

This uploader goes into RadioDJ Panel

[--ss--]

That has nothing to do with the code I posted..?

The upload script goes into the dj panel he uses