Xampp - how to make sessions work?

Question

PHP

There is such a code

if (!isset($_SESSION)) {
    //session_name("u1");
    session_start();
    $_SESSION ['login'] = '$login';
    $_SESSION ['pass'] = '$pass';
    $_SESSION ['auth'] = true;
    $_SESSION ['id'] = '$p_id';
    $_SESSION ['role'] = 'USER';
    echo 'Session registrate!' ;
} else {
    print_r ( $_SESSION ) ;
    unset ( $_SESSION ) ;
}

which always outputs

session register!

xampp server under windows i.e. there shouldn't be any problems with access to the session. The session id is entered in the cookie, the session is also saved in the tmp file. I can't figure out what's wrong.

Answer 1

isset($_SESSION) does not make sense to check before we called the session_start() command;
take out session_start(); behind the if-else block and check if login , pass , auth are set.