problema sessioni

[StErMi]

Ecco tutto aggiornato con i tag <pre> ^^

Codice:

<?php
include("config.inc.php");
$nick = htmlspecialchars(trim($_POST["nick"]));
$pass = md5($_POST["pass"]);
$query = "SELECT id, nick, passw FROM utenti WHERE nick = '$nick'";
$q = mysql_query($query);
$c = mysql_num_rows($q);
if ( $c > 0 ) $v = mysql_fetch_row($q);
else {
  //header("Location: login.php");
  //exit;
  echo "else";
}
if ( $v[2] == $pass ) {
    $_SESSION["loggato"] = TRUE;
    $_SESSION["IDlog"] = $v[0];
    $_SESSION["nick"] = $v[1];
}
echo $v[0];
echo "<pre>";
echo $_SESSION[nick];
echo "<pre>";
echo $_SESSION[IDlog];
echo "<pre>";
print_r($_SESSION);
echo "<pre>";
print_r($v);
echo "<pre>";

//header("Location: index.php");

?>

Echo vari:

4

lol

Array
(
[loggato] => 1
[IDlog] =>
[nick] => lol
)

Array
(
[0] => 4
[1] => lol
[2] => 9cdfb439c7876e7
)