php session doesn't work

Question

How it should work: Index.php is the secured page. It includes check.php, which checks if you have a session = good. If it hasn\'t, you\'re not logged in -> log off, remove sess

Answer 1

Use one for action document such as index.php there is code:

session_start();
if(isset($_POST['login']) && isset($_POST['password'])){
   // login
   header('Location: (here is some page)');
}
if(!isset($_SESSION['user']){
  // @todo some action
} else {
  require_once('login.php');
}

if(isset($_GET['logout'])){
   unset($_SESSION['user']);
   header('Location: (here is some page)');
}