Question

i am making a 10 question survey with one question at a point. i made a session for passing values between questions. the thing i discovered is that the session values do not get destroyed even on a page refresh. is there a workaround or am i doing something wrong.

just to make things clear, here is the code:

session_start(); 
//  $_SESSION['score'] = $score;
    $_SESSION['qnum'] = isset($_SESSION['qnum']) ? $_SESSION['qnum']+1 : 1;

    if ($_SESSION['qnum'] < 10){
        $_SESSION['total'] = isset($_SESSION['total']) ? $_SESSION['total']+$score : $score;
    }
    else if ($_SESSION['qnum'] == 10){
        $_SESSION['total'] = isset($_SESSION['total']) ? $_SESSION['total']+$score : $score;
        echo "finished";
    }

    echo $_SESSION['qnum'];
    echo '\n';
    echo $_SESSION['total'];

Answer 1

$_SESSION variables will remain until you terminate the session or unset() the session variable.

To end a session try this code:

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

To delete a session variable use:

unset($_SESSION['variablename']);