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<?PHP
session_start();
if ($_SESSION["authenticated"]==1)
{
$verbindung = mysql_connect("localhost","bn","pw"); 
mysql_select_db("name"); 
$query="Select * from quiz_user='".$_POST["mail"]."' and passwort='".$_POST["passwort"]."'; 
$result=mysql_query($query, $verbindung);
$row=mysql_fetch_array($result);
if($row["id"])
$_SESSION("authenticated")=2;
else "Username or Password incorrect";
}
if ($_SESSION["authenticated"]==0)
{
echo "Session doesn’t exist. Maybe has expired";
}
if ($_SESSION["authenticated"]==2)
{
header("Location:geheim.htm");

}
echo mysql_Error();
?>