Question

I am having an issue with the session variables.

I am having a simple signup php page that uses ajax calls to verify username and email address if they already exist. It also has an ajax image uploader that gives a preview of the selected image.

Now this is how I am setting the session variable :-

session_start();
session_unset();
$_SESSION = array();

if (ini_get("session.use_cookies")) {
    $params = session_get_cookie_params();
    setcookie(session_name(), '', time() - 42000,
        $params["path"], $params["domain"],
        $params["secure"], $params["httponly"]
    );
}

session_destroy();
session_start();

$_SESSION['avurl'] = $filename;

$filename is valid as it is echoed in the above code just after this snippet.

In the page where I need to use this session variable I have this :-

session_start();

$av_url = $_SESSION['avurl'];

Now the weird thing is that whenever this runs the first time the session variable doesn’t have any value. But the second time it works.

How I came to check this is that I created a test.php which just echos $_SESSION[‘avurl’] and the first time it never shows anything but the second time it does.

What I figured out from this is that once it echoes this session variable it starts working to store the value.

And all that code that I am using to set that variable is edited from just :-

session_start();

$_SESSION['avurl'] = $filename;

to that as this also didn’t work and I thought that this could be a problem with already existing sessions.

Thankyou
Hope this is enough information for solving my problem !!

Answer 1

session_start();
session_unset();

This code delete Your session… Why You doing this?