PHP $_SESSION Not working

Donk · 26-01-07

I've written a script using session variables

The first section of the php code is:

PHP Code:


			
<?php session_start();

print_r($_SESSION);

include("admin/configfile.php");

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>

<meta http-equiv="content-type" content="text/html; charset=utf-8" />

<meta name="description" content="#" />

<meta name="keywords" content="#" />

<meta name="author" content="#" />

<link rel="stylesheet" type="text/css" href="style.css" media="screen" />

There are no spaces or other code in front of this code but I'm getting a "headers already sent" error.

Has anyone any ideas what could be going wrong?

1BIZLIST · 26-01-07

Hmm never used session_start()

I use session variables like this

PHP Code:


			
<?php
if (!isset ($_SESSION)){
session_register("$username_ses");
session_register("$memlvl_ses");
session_register("$page_ses");
session_register("filmID_ses");
session_register("$refID");
}
?>

and then define the variables like so

PHP Code:


			
$_SESSION['memlvl_ses'] = $memlvl;

php creates a SessionID automatically when using session_register anyway, never experienced any problems going the above route.

Mark.

EDIT:

If you want to, email me the script and I will take a look mate, two heads and all that.

Donk · 26-01-07

The problem appears to be my script sending something before the first line???

Code:

Warning: session_register() [function.session-register]: Cannot send session cookie - headers already sent by (output started at /filepath/mariajames/index.php:1) in /filepathl/mariajames/index.php on line 3

1BIZLIST · 26-01-07

Hmm are you certain there is nothing before it? only looking at the page source before the call to the session_start() there seems to be a stray '<br />'

Mark.

a17drian · 26-01-07

phpinfo();

Check that Session Support is enabled

Donk · 26-01-07

Quote:

Originally Posted by a17drian

Check that Session Support is enabled

I've written two simple php scripts to test it and they work ok

PHP Code:


			
<?php session_start();

$_SESSION['test']="abcdedf";

?>

<a href="sessiontest1.php">test</a>

and

PHP Code:


			
<?php session_start();

echo $_SESSION['test']; ?>

If you run the first one and click the link it displays "abcdedf"

a17drian · 26-01-07

Session seems to be fine then, when I get the error 'Headers already sent' its normally due to the fact your trying to do header('Location: somewhere'); after you have done a print_r().

Inside your include("admin/configfile.php"); do you have anything which is trying to redirect the user?

Try removing print_r($_SESSION); and see if it fixes the problem, if so you may have a header(Location: 'somewhere'); inside your configs....may need an if() around it

1BIZLIST · 26-01-07

Bob PM'd you.

Mark

Donk · 26-01-07

Thanks for your help.

I eventually found the problem too. It would appear my file got corrupted and the problem didn't appear in Dreamweaver or wordpad but using file_get_contents and displaying the file as an array I got

Code:

   [0] => ï
    [1] => »
    [2] => ¿
    [3] => <
    [4] => ?
    [5] => p
    [6] => h
    [7] => p

at the beginning of the file.

1BIZLIST · 26-01-07

No problem mate,

Once I stripped the body out and just left the session statements and the head code I knew your code was fine. Cutting and Pasting it into a new php file worked a treat.

Cheers
Mark.

Bionic · 26-01-07

BY the way, you may want to edit that little bit of script earlier on in the thread that show the file path on your server - to make it a bit more anon.