session handling

Anon

Hi
I am handling a session variable in which i am registering the userid value while the user login.This registered variable should available where ever i open the different page.For that i am using this.
<?
session_start();
session_register("userid");
$userid="xxx";
?>
After authenticating the userid value i am doing the above and redirecting to page2 using header function.

<?
header("Location: page2.phtml");
?>
In page2 to check the registered session value i am doing like this.
<?
session_start();
print("user id ".$userid);
?>

But this value returns empty string.I don't know what is the problem.It is totally confusing.I am using PHP4.In my php.ini the register_global is enabled.But there is no entry for track_vars.But in php.ini it is mentioned that track_vars is enabled by default for php4.

If the above problem is solved then how to get the value from $HTTP_SESSION_VARS.

Expecting help for my problem.
Thanks in advance.

srini

Anon

I've noticed that the Header command isnt working too well with sessions (for me at least) and when re-directs it doesnt always pass the value. Instead of re-directing the user try giving him a link where he has to click.
That solved my problems.

Anon

Thanks for your mail.I tried in different way and is working now.First time i did like this.
1.passed the $param value="" to page1.phtml go get the userid and password.
2.After getting the input i assigned the param value to $param="ok" as a hidden variable and called the same page1.phtml
3.if ($param == "ok"),i will call the function check() with userid and password.
4.After authenticated with database i am starting the session and registering the variables.Then called the header.
Since i am starting the session inside the function it is not giving the registered variable on page2.Now i have removed the function.If the $param="ok" then i immediately created the session and registered the variables then called the header.Now it is working.
I don't know why it is not working if it created inside the function.

thanks

Anon

hi..I'm not sure of the answer but you can download yhe latest version of php which is php4.0.3pl1-win32(linux exists too). The fact is that there is a line in the php.ini file:
session.use_trans_sid = 1
it allows yhe session to be active in another page.

HTTP_SESSION_VARS is an array, so you just have to call for example
HTTP_SESSION_VARS["$userid"]...

You be kind to give me some feedback :-)

Anon

Hi
i am using the version PHP4.0.3pl1.As you said i checked in php.ini for session.use_trans_sid.It's already set to 1
I am doing like this.
<?
function fun1()
{
session_start();
session_register("name");
$name="xxx";
header("Location: page2.phtml");
}
?>
<?
line1;
line2;
fun1();
?>
In the above case the regisered session variable is not available in page2.
The session variables are available only if i create the session outside the function.(And also this value exists in $HTTP_SESSION_VARS.)
That is after line2 instead of calling fun1.It is behaving funny.
I don't know what is the reason for this.
If you find any reason for this let me know.
Thanks for your reply.
srini

Anon

I've been having the same problem with one of my scripts. It turns out that you must declare the session variables as global before modifying them...preferably right after session_start() (in the function):

function login( $username ) {
session_start();
global $username;
session_register( "username" );
}

$entered_username = "godfear";
login( $entered_username );

echo $username;

Hope that helps.