Mkdir da form

[peterminnow]

Salve a tutti,

vorrei creare dinamicamente la cartella dal campo form ma non riesco!!!

<form action="script.php" method="post" enctype="multipart/form-data" id="form-demo">
<input name="cartella" type="text" />
</form>

<?php
$dir = $_POST['cartella'];  
umask(0);
$target = basename( $_FILES['photoupload']['name']);
umask(0);
mkdir($dir, 0777);
move_uploaded_file($_FILES['photoupload']['tmp_name'], $dir. "/" . $target);
?>

grazie anticapatamente a tutti!!..ciao Peter