Using multiple SESSION variables on a single page not working

Question

On my site, the login.php page (if successful login) will redirect to index.php and will start a session and 2 SESSION variables.

One of the variables started is a success message:

$_SESSION["message"] = "Login successful!";

the second is the user session variable:

$_SESSION["authenticatedUserEmail"] = $email;

the problem is that if I check the variables individually and then try and use them on the index.php page, only the first one that is checked will work.

This following snippet will show the $form_message but it will not show the $_SESSION["authenticatedUserEmail"]:

session_start();
if(isset($_SESSION["message"])) {
    $form_message = $_SESSION["message"];
    session_unset($_SESSION["message"]);
    echo $form_message;
} else {
    $form_message = "";
}


if (isset($_SESSION["authenticatedUserEmail"])) {

    echo $_SESSION["authenticatedUserEmail"];

}

It does work when I only use one if(isset($_SESSION statement but I don't want to always include both inside the same statement.

I've done an error check:

ini_set('display_errors',1); 
error_reporting(E_ALL);

but no errors appear.

Can anyone please suggest why this may not be working or if I am missing something?

Thanks in advance.

reza · Accepted Answer · 2016-12-14 10:12:12Z

4

session_unset function free all session variable. this is why when you are using session_unset, next session variable is not founded. read the manual please.

http://php.net/manual/en/function.session-unset.php

to achieve what you want you can use unset function

unset($_SESSION["message"]);

hope this helps

answered Dec 14, 2016 at 10:12

reza

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Tim Ebenezer · Accepted Answer · 2016-12-14 10:11:38Z

2

Your call to session_unset is the problem, you should be simply using unset.

session_unset unsets the whole $_SESSION array.

answered Dec 14, 2016 at 10:11

Tim Ebenezer

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