set session variable,URGENT

Anon

hai,

Can anybody help me? here i'am trying to
set session variable,it can be set, but
once i call the session in next page it
display an error message like this:-

Warning: Cannot send session cache limiter - headers already sent (output started at /home2/tours88/www/admin/index.php:5) in /home2/tours88/www/admin/index.php on line 7

And also when i trying to destroy it, the message is like this:-

Warning: Trying to destroy uninitialized session in /home2/tours88/www/admin/logout.php on line 3

Warning: Cannot add header information - headers already sent by (output started at /home2/tours88/www/admin/logout.php:3) in /home2/tours88/www/admin/logout.php on line 5

*if anybody know why,please help me as soon
as posible.

thanks.

theslinky

Hm, have you looked at: /home2/tours88/www/admin/index.php:5

meaning, the PHP says that your script is outputting something on line 5 BEFORE the session deletion is called.

If you can, show us the code snippet from line 1 till the line you are getting the error on (line 7). this way we can make sure that your problem is exactly what the PHP says: output started already.

Basically, when the session wants to delete a variable, it sends an HTTP header to the browser telling it to delete the value. So if you've started outputting anything before you call the delete session variable, the PHP cannot send the HTTP header.

-sridhar

Anon

hai,
Thanks for your kind reply.

Here is the part where i set the session.

<?php
global $login_ID,$login_msgError;

session_start();
$adminname=$user;
session_register("adminname");

$address="/admin?do=main";
?>*This page is ok, no error.

The page with the error is like this:-

<head></head>
<title>tours88-Admin</title>
<? global $do,$login_ID ;
session_start();
?>

The page where destroy the session:-

<?php global $adminname;
session_unregister($adminname);

session_destroy();

header("location: /admin");
?>

theslinky

Okay, I see the problem. basically on this file:

<head></head>
<title>tours88-Admin</title>
<? global $do,$login_ID ;
session_start();
?>

you are printing out something before you start the session. remember: you cannot print ANYTHING before you start the session. Change the code to this:

<? global $do,$login_ID ;
session_start();
?>
<head></head>
<title>tours88-Admin</title>

So if you have any or <body> tags before the session_start(), please move those AFTER the session_start command has been issued.

let me know if this solved the problem.

-sridhar

Anon

hai,

Thanks,the problem with start_register() is
solved with your suggestion, but the logout
page still giving problem where i can't

destroy the session.The error message like
this:-

Warning: Trying to destroy uninitialized session in /home2/tours88/www/admin/logout.php on line 3

Warning: Cannot add header information - headers already sent by (output started at /home2/tours88/www/admin/logout.php:3) in /home2/tours88/www/admin/logout.php on line 5

The coding:-

<?
session_unregister($adminname);

session_destroy();

header("location: /admin");
?>

Anon

Hai Mr.sridhar,

Thanks for your help, mr.sridhar please ignore the last message that i send, because i already solved it.

Thanks & see you.

Anon

Care to expand on who you solved this?