php script don't refreshes in browser

Question

Hello. I have the following php code:

<?php session_start();
....
$result=$db->query($query);
$row=$result->fetch_assoc();
$_SESSION['id']=$row['id'];
header('Location: http://www.blabla.com/successLoginPage.php');

php code on: successLoginPage.php

<?php session_start();
echo $_SESSION['id'];

Here is problem. When i do all things, i see nothing in successLoginPage.php, after approximately 10 minutes i refresh the page and see correct variable. I tried to clear the cache, ctrl+f5, shutdown the browser and computer, but nothing changes - still need to wait 10 minutes. This problem is exists in chrome and ie8.

How can i solve this problem?

Thanks in advance.

*Edit 1:

I add logout.php page with the following code: session_start();session_destroy();unset($_SESSION); When i log in successfully and receive the proper echo, i push logout link and then log in using another account - all great. 1st question - can i log in via 1st account for the 1st time and via 2nd account for the 2nd time? Is this ok? 2nd question - when i failed to log in, there again i see freeze. If i try to log in with proper account after this, i will see old information about fail login. What i need to do?

Answer 1

Have you tried session_write_close(); after setting your session variable?

Answer 2

It may be somewhat obvious but... is $row['id'] actually a number/string, not NULL? :p You could try

var_dump($_SESSION['id']);

instead of

echo $_SESSION['id'];

Answer 3

First of all, you are not showing the entire code and in this case it is very important.

<?php session_start();
....
$result=$db->query($query);
$row=$result->fetch_assoc();
$_SESSION['id']=$row['id'];
header('Location: http://www.blabla.com/successLoginPage.php');
// Mystery ???

When you are calling header('Location: xxx'), it doesn't stop the script, so everything after your header is executed.

You could add the function die to prevent any other code to execute after the redirection.

<?php session_start();
....
$result=$db->query($query);
$row=$result->fetch_assoc();
$_SESSION['id']=$row['id'];
header('Location: http://www.blabla.com/successLoginPage.php');
die(); // No more code executed after this //

Answer 4

Solved the problem. I deleted all login files and rewrite it from scratch and all seems to work now. Don't know where bug was.