il mio login funziona in questo modo
Codice PHP:
<?php
session_start();
dbconnect();
if (!isset($verified_user)) $verified_user='';
if ($action=='login') {
    $result=mysql_query("SELECT id,Nick,Pass,Esilio,Motivo_ FROM login WHERE Nick='".$nick."' AND Pass='".$psw."'");
    if (mysql_num_rows($result)>0) list($verified_user)=mysql_fetch_row($result);
    else $verified_user='';
}
session_register("verified_user");
?>
<?php
setcookie("user_id", $nick, 0, $cookie_path, $cookie_host);?>