IF ELSE语句中的PHP逻辑或运算符

Question

I have a user level login system and I want all the login users to go to the home page. I wonder why the following logic not working. Please suggest better ways.

$role = $_SESSION['sess_userlevel'];

if( $role == 1 || $role == 2 || $role == 3 ){
        $securep = '../';
        header('Location: '.$securep);
 }else{
  //back to the login page.
}

The problem with this code is that it redirects back to the login page.

Answer 1

maybe you have to insert

session_start();

before you access the $_SESSION array?

Also check the result of

var_dump($role)

before your if statement

Answer 2

$role = $_SESSION['sess_userlevel'];

if( $role == 1 || $role == 2 || $role == 3 ){
    $actual_link = "http://$_SERVER[HTTP_HOST]$_SERVER['DOCUMENT_ROOT']";
          header('location:'.$actual_link.'yourpathfile.php');
 }else{
  //back to the login page.
}