PHP uploader - LsA

<?php
$uploaddir = 'uploads/'; // Relative path under webroot
$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
  echo "File is valid, and was successfully uploaded.\n";
}
else {
  echo "File uploading failed.\n";
}
?>