Session Management Problem

[dnreeves]

I have discovered that I cannot use session management functions within a function library that I include in my
code. See example below:

File name: test.php

This works correctly:

<?php
function checkSession()
{
session_start();
if(!session_is_registered("SESSION"))
{
header("Location: logout.php");
exit();
}
}
checkSession();
//
// access to everything below requires a registered session
//
phpinfo();
?>

If I put the checkSession function in an external file to include with a require_once() - it fails!

checksession.inc
<?php
function checkSession()
{
session_start();
if(!session_is_registered("SESSION"))
{
header("Location: logout.php");
exit();
}
}
?>

test.php
<?php
require_once('checksession.inc');

   checkSession();

//
// access to everything below requires a registered session
//
phpinfo();
?>

The error messages output are the following:

Warning: Cannot send session cache limiter - headers already sent (output started at /mba/reports/checksession.inc:13) in /mba/reports/checksession.inc on line 4

Warning: Cannot add header information - headers already sent by (output started at /mba/reports/checksession.inc:13) in /mba/reports/checksession.inc on line 7

Any help with this will be most appreciated.

David Reeves
Houston, Tx
[e-mail]

<?php

[MaTT]

You should check if there is no space in your file 'checksession.inc'... You cannot print text before using sessions functions !

[mw-dnb]

your passing information to the the stored values without destroying it first.

[dnreeves]

Thanks for your response.

The problem was fixed when I removed the extra CRLF after the closing ?> in the included file.

I'm not sure what you are referring to when you state:
"your passing information to the the stored values without destroying it first."

Can you please elaborate?

Regards,

David