$_SESSION Variable checking does not work...

[migi0027]

<?php
function Login()
{
    session_start();
$_SESSION["loggedin"] = true;
echo "You are logged in!";
    header("Location: ../L_index.php"); //Aka Logged in Index.
}

function Logout()
{
$_SESSION["loggedin"] = false;
    session_destroy();
}

function checklogin()
{
    session_start();
    if ($_SESSION["loggedin"] == true)
    {
        return true;
    }
    else
    {
        return false;
    }
}
?>

 

This is just a tiny bit of my code, there is security holes, but as you see, there is 3 functions:

Login

Logout

Checklogin

 

But when i use the Login function, everything is fine, but if i then use the checklogin, then it always returns true(it returns true after i used the logout function), why?

[AyKay47]

it returns true because the Login() function sets $_SESSION["loggedin"] to true when called.

[migi0027]

it returns true because the Login() function sets $_SESSION["loggedin"] to true when called.

 

I know that , but when i call the logout function and then call the check login, it still returns true.

[creata.physics]

add session_start to the beginning of the logout function and try it again.

[creata.physics]

Actually, I just ran your code and everything works fine.

<?php
function Login()
{
    session_start();
$_SESSION["loggedin"] = true;
}

function Logout()
{
$_SESSION["loggedin"] = false;
    session_destroy();
}

function checklogin()
{
    if ($_SESSION["loggedin"] == true)
    {
        echo "You are logged in.";
    }
    else
    {
        echo "You are logged out.";
    }
}
Login();
checklogin();
logout();
checklogin();
?>

 

Output: You are logged in.You are logged out.

 

Results were exactly as expected. Are each of these functions being called from the same file. If not then how do you have your script set up to run these functions?

[migi0027]

add session_start to the beginning of the logout function and try it again.

 

Thank you so mouch, see, i knew i had done something stupid!

(Added start session)

[AyKay47]

it returns true because the Login() function sets $_SESSION["loggedin"] to true when called.

 

I know that , but when i call the logout function and then call the check login, it still returns true.

 

you did not state this at all in your OP.