Untitled

main2.php

<html>
<pre>
<?php
    session_start();
    require( 'login.php' );

//var_dump($_SESSION);
?>
</pre>
</html>

login.php
<?php
session_start();
if (empty($_SESSION['user'])) {
    $name = isset($_POST['name']) ? $_POST['name'] : '';
    $pass = isset($_POST['pass']) ? $_POST['pass'] : '';

    if ($name != '' || $pass != ''){
        if ($name == "test" && $pass == "test") {
            $_SESSION['user'] = 'Test';
            $_SESSION['auth'] = 1;
            header('Location: index.php');
            exit;
        }
        else {
            die("ERROR: Zly login / lub haslo");
            session_destroy();
        }
    }
   ?>
<html>
    <body>
        <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
            Username: <input type="text" name="name" value=""><br>
            Password: <input type="password" name="pass"><br>
            <input type="submit" value="Log In">
        </form>
    </body>
</html>
    <?php
}
else {
    header('Location: index.php');
}
?>