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Rename Uploaded file


xyn

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Hey guys,
I've changed my format from my last file uploading script
still uploading an avatar, but i've decided to store the
image inside a folder called "images" and I wanted to
rename the image.

My problem, I'm not sure how to rename an uploaded image
but i wanted it to be:
USERNAME_av.<EXT> example (ash_av.PNG, or joe_av.jif)
if you understand what i'm getting at, then i can add that to
the database, and it will be easier to show their avatar?

my code
[code=php:0]function UploadAvatar(){
if(isset($_POST['upload']) && empty($_POST['upload']))
{
echo "file was left blank.";
return false;
}
else
{
$fileName = $_FILES['userfile']['name'];
$tmpName  = $_FILES['userfile']['tmp_name'];
$fileSize = $_FILES['userfile']['size'];
$fileType = $_FILES['userfile']['type'];
$max = "1048576 "; //1mb max size

$Types = array('image/png',
'image/jif',
'image/jpg',
'image/bmp');

if(!in_array($fileType = $_FILES['userfile']['type'], $Types))
{
echo "Your file does not match our criteria";
return false;
}

if( $fileSize > $max )
{
echo "File is too big";
return false;
}

$fp      = fopen($tmpName, 'r');
$content = fread($fp, filesize($tmpName));
$content = addslashes($content);
fclose($fp);

if(!get_magic_quotes_gpc())
{
    $fileName = addslashes($fileName);
}

$date = date("d F, o");
$time = date("g:ia");

$FileRename="";
for ($i=0; $i<8; $i++) $FileRename .=rand(1,9);

$path = "images/";
if(is_uploaded_file($_FILES['userfile']['tmp_name']))
{
move_uploaded_file($_FILES['userfile']['tnp_name'], $path);
}
else
{
echo "file not uploaded";
return false;
}

mysql_query("INSERT INTO avatar ('user','filename','date','time') VALUES
('{$_SESSION['username']['usr_user']}', '$FileRename', '$date', '$time')") or die('Query Failed: '.mysql_error().'');

echo 'Image Uploaded';
}
return true;
}
[/code]
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