poop

// ---- session.php ----
<?php
session_start();

if(isset($_POST['submit'])){
    $login = array('admin' => 'password');
    $username = isset($_POST['username']) ? $_POST['username'] : '';
    $password = isset($_POST['password']) ? $_POST['password'] : '';

    if(isset($login[$username]) && $login[$username] == $password){
        $_SESSION['userid']['username'] = $login[$username];
        header("location:admin/index.php");
        exit;
    }
    else {
        $message = "<span style='color:red'>Felaktigt användarnamn/lösenord.</span>";
    }
}
?>
// ---- login.php ----
<?php
$page_title = "Inloggning";
include("includes/session.php");
include("includes/header.php");
?>

<h2>Formulär och sessioner</h2>
<div>
    <p>Använd användarnamnet "admin" och lösenordet "password".</p>
    <?php if(isset($message)){ ?>
    <?php echo $message; ?>
    <?php } ?>
    <h3>Inloggning</h3>
    <form action="" method="post">
        Användarnamn: <input type="text" name="username">
        Lösenord: <input type="password" name="password">
        <input name"submit" type="submit" value="Logga in">
    </form>
</div>

<?php include("includes/footer.php"); ?>