Accessing session variables with php

Report · May 31, 2009

I am trying to access the session variable $_SESSION['MM_Username'] in one of my php pages, but it is somehow showing empty (i.e it does not contain the username that was entered during login).

I checked and confirmed that my login.php function is properly setting the MM_Username session variable by echoing it from the login function.

So why can't I read it from another php file in the same session? Do I need to do something else before the session variables can

be properly read from any php file in the same session? Any help would be appreciated.

Report · May 31, 2009

You need to start a session on the other page to show the session variable.

Put this code on the first line of your page:

<?php
session_start(); // start up your PHP session! 
?>

Report · May 31, 2009

Thanks for the suggestion. I tried it but I still can't get the username session variable. Is there anything else that need to be done?

Report · May 31, 2009

Here is a test code I am using to access the session variable $_SESSION['MM_username'] from the php page test.php. But it is not working.

I get an empty string all the time for $username. Can any one see something wrong with this code?

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<?php require_once('Connections/MyTestingConn.php'); ?>

<?php session_start(); ?>

<?php

$username = "-1";

if (isset($_SESSION['MM_username'])) {

$username = $_SESSION['MM_username'];

echo $username;

}

else

echo "Eror: can not access session variable";

?>

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

<head>

</head>

<body>

</body>

</html>

------------------------------------------------------------------------------------------------------------

Report · May 31, 2009

I found what the problem was. This question can be considered as answered.

Report · May 31, 2009

Answered.

Report · Jun 01, 2009

So what was the problem then I'm curious.

Report · Jun 01, 2009

I found out in Dreamweaver documentation that I had to bind the MM_Username session variable from with the login page. A very simple procedure I was not aware I had to do. But most probably, I also needed what you had suggested. So, it looks that I was missing two things.

But everything is OK now. Thanks again for the help!