ansaurus

Question

Answer 1

A:

You need to call session_start() before you can access $_SESSION. Furthermore, you're writing to $_SESSION['fname'] before you read from it.

EDIT: The updated version of your code shows you're calling session_start(), but also that you're indeed overwriting the value of $_SESSION['fname'] with $fname (which is undefined at this point) before you read $ufname from it. Try to change the order of those rows, that probably should fix the problem.

Kaivosukeltaja 2009-11-05 06:26:39

he has a session_start right at the start

thephpdeveloper 2009-11-05 06:27:38

session_start() is at the top (I missed it too) and he's relying on register globals for the $fname value.

cletus 2009-11-05 06:27:46

The previous, unformatted version which I answered to didn't have session_start(). Thanks for the downvotes, guys.

Kaivosukeltaja 2009-11-05 06:32:06

+1 @Kaivosukeltaja spotted the bug right away. It's `$_SESSION['fname']=$fname;` that's causing the session data to be destroyed, since $fname isn't set yet.

wimvds 2010-08-05 15:06:02

Answer 2

+3 A:

There aren't any problems with the way you're handling the session. However, you're setting $_SESSION['fname'] to $fname which is never previously declared or set. Thus, the value stored in the $_SESSION['fname'] index is going to be null. That's why you're not getting any output from the session variable.

BraedenP 2009-11-05 06:27:50

$fname is set if register globals is on.

cletus 2009-11-05 06:28:17

Ah, right... Okay.

BraedenP 2009-11-05 06:29:10

Answer 3

+2 A:

Your problem is that you're accessing $fname directly. Try to use $_POST['fname']. Your way of using the variable has security risks and this is the reason it is disabled by the default in newer versions

rossoft 2009-11-05 06:29:40

Answer 4

A:

<?php session_start(); ?> 

<html> 
<head></head> 
<body> 

<?php 
if (!isset($_SESSION['name']) && !isset($_POST['name'])) { 
    // if no data, print the form 
?> 
    <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post"> 
        <input type="text" name="name"> 
        <input type="submit" name="submit" value="Enter your name"> 
    </form> 
<?php 
} 
else if (!isset($_SESSION['name']) && isset($_POST['name'])) { 
    // if a session does not exist but the form has been submitted 
    // check to see if the form has all required values 
    // create a new session 
    if (!empty($_POST['name'])) { 
        $_SESSION['name'] = $_POST['name']; 
        $_SESSION['start'] = time(); 
        echo "Welcome, " . $_POST['name'] . ". A new session has been activated for you. Click <a href=" . $_SERVER['PHP_SELF'] . ">here</a> to refresh the page.";
        echo "<br>Your session id is: ".session_id(); 
    } 
    else { 
        echo "ERROR: Please enter your name!"; 
    } 
} 
else if (isset($_SESSION['name'])) { 
    // if a previous session exists 
    // calculate elapsed time since session start and now 
    echo "Welcome back, " . $_SESSION['name'] . ". This session was activated " . round((time() - $_SESSION['start']) / 1) . " seconds(s) ago. Click <a href=" . $_SERVER['PHP_SELF'] . ">here</a> to refresh the page."; 
    echo "<br>Your session id is: ".session_id();
} 
?> 
</body> 
</html>

Newb 2009-11-06 08:28:20

ansaurus

tags:

views:

answers:

issue with php sessions

related questions