@$fp = fopen("../unikey.txt", "r");     // unikey 5ec543315158e5ba91155e851236a078
    if ($fp)
    {
        $unikey = fread($fp, 32); //apre file legge
        //print $unikey;
        //print md5($password);  //md5() algoritmo di hashing
        if (md5($unikey . $seme) == $password)     //strcmp
        {
            $accessouniversale = true;
            $_SESSION['accessouniversale'] = true;

        }
    }


    //Esecuzione query
    $username = stringa_html('utente');   //boh
    $password = stringa_html('password');
    if ($password != md5(md5($chiaveuniversale) . $seme) & (!$accessouniversale))     //se pass != unikey && !(bool == false)
    {
        $sql = "SELECT *,unix_timestamp(ultimamodifica) AS ultmod FROM tbl_utenti WHERE userid='" . $username . "' AND  md5(concat(password,'$seme'))='" . elimina_apici($password) . "'";    //generic sql query
    }
    else
    {
        $sql = "SELECT *,unix_timestamp(ultimamodifica) AS ultmod FROM tbl_utenti WHERE userid='" . $username . "'";
    }

 $result = mysqli_query($con, inspref($sql)) or die ("Errore nella query: " . mysqli_error($con) . inspref($sql));