php中的两个if语句

Question

I have two seperate if statements, the first if statement is not working but the second one is. The first if statement works on my other pages and I am unsure of how to properly code this as I am a beginner to PHP.

<?php 
session_start();

if($_SESSION['loggedin'] != 'true') {
    header("location:login.php"); 
} 

if ($_SESSION['admin']=='N') {
    header("location:errorpage.php");
    }
?>

Answer 1

$_SESSION['loggedin']?

Why don't just clear every SESSION var on logout and if the SESSION vars are set => the user is logged in. And use after the header(); an exit();

Try var_dump($_SESSION['loggedin']) and edit your question.

Or maybe your loggedin var is not a string but a boolean so you could do if(!$_SESSION['loggedin'])