Why Session Variable is not working in PHP?

Question

I am trying to set a session variable but it's not working. Here is what I am doing in Code. Please suggest what's wrong:

Login-Validator.php

<?php
    session_start();
    $userName = "test";
    $_SESSION['iUsername'] = $userName;
    header("Location: http://www.XXXXXXXXXXXX.com/LoginSuccess.php");
?>

LoginSuccess.php

<?php
    session_start();
    $User = $_SESSION['iUsername'];
    echo $User;
?>

This code seems okay, but your sessions could be failing to persist for a variety of reasons. Please provide some more information, like your deployment environment, your session handler, and what browsers you're using. — Jimmy Sawczuk, Oct 02 '12 at 13:58
Are these files on the same server? The reason I ask is because of the 'http://www.XXXXXXXXXXXX.com/' in the header. Also have you tried adding print_r($_SESSION); in both files under the session_start() to see what is in the session? — Chris, Oct 02 '12 at 13:59
Are there any hidden errors, such as do you have a space perhaps at the top of the file and its saying the headers cant be sent? — BugFinder, Oct 02 '12 at 14:00
possible duplicate of [Cross domain PHP Sessions](http://stackoverflow.com/questions/1339984/cross-domain-php-sessions) — mario, Oct 02 '12 at 14:02
Maybe try in each file: error_reporting(E_ALL); - may show up some hidden errors maybe, though I am not sure on this - just stealing an idea that BugFinder suggested.. — Chris, Oct 02 '12 at 14:02
possible duplicate of [Headers already sent](http://stackoverflow.com/questions/8028957/headers-already-sent-by-php) in case it's the same domain and *someone* didn't look for notices yet. — mario, Oct 02 '12 at 14:03
check your `server configuration` first , it is causing problem if files are on same server. — Yogesh Suthar, Oct 02 '12 at 14:06

score 1 · Accepted Answer · edited May 23 '17 at 12:04

Try this (put a 'exit' after the redirect)

session_start();
$_SESSION['session'] = 'this is a session';
header('location: apage.php');
exit;

read more at @ PHP: session isn't saving before header redirect

If this doesnt work..comment out the redirect and open each page in a different browser tab. Then open Login-Validator.php and then open LoginSuccess.php and check if the session was set. I think it cause by the cookie not setting before the redirect.

Also is Login-Validator.php and LoginSuccess.php on the same domain?

header("Location: /LoginSuccess.php");

Why Session Variable is not working in PHP?

Login-Validator.php

LoginSuccess.php

1 Answers1