session_register access

[Symtex]

I'm new to php. I've been reading the other thread but still can't figure out how to manage my session variable.

this is a part on my login.php on my website.
<?
$username=($HTTP_POST_VARS["username"]);
$password=($HTTP_POST_VARS["password"]);

$query="select* from members where username = '$username' and pass = '$password'";
$result=mysql_query($query);

if (!mysql_num_rows($result))
{
echo ' <br> you are using wrong username and password </br>';
exit;
}

session_register("valid_user");
$valid_user=$username;
?>

I have no problem yet. It's when I'm trying to access the session variable in another page with the following function :

$valid_user=$HTTP_SESSION_VARS["valid_user"];

it's empty. what exactly do I need in order to access to sessoin variable so I can carry my authentication process thru out the whole site. thanks again

[cahva]

Instead of

 
session_register("valid_user"); 
$valid_user=$username;

Use..

$_SESSION['valid_user']=$username;

And then in another page:

$valid_user=$_SESSION['valid_user'];

So you dont have to use session_register() at all. Check the manual why using $_SESSION is a better way...

[Symtex]

thanks alot I will try it