form - enctype per immagini

[E.d.i.73]

per quanto riguarda il form:

<form action="Cartella-sub/prova_2.php" method="post" enctype="multipart/form-data"> 
<fieldset>
<legend>Trasferimento Dati POST</legend>
<input type="file" name="image" > 


<input type="submit" name="submit" value="invia"> 
</fieldset> 
</form>

nella pagina php:

$dir=/upload/;
if(is_uploaded_file($_FILES['image']['tmp_name']))
{
move_uploaded_file($_FILES['image']['tmp_name'],$dir.$_FILES['image']['name']);
$nome_file=$_FILES['image']['name']);
echo "[img]$dir/$nome_file[/img]";
}