Day 19 - Members Area - Become PHP Expert in 30 days

[admin]

http://php.flashwebhost.com/annie/tasks.php

 <?php

session_start();

if (!isset($_SESSION['AUTH_USER'])) {
    echo "User is not logged in<br>";
    echo "<a href=login.html>click here</a> to go to login page";
    exit;
}

echo "<h1>Welcome to members only page. This page is under construction.</h1>"; 

echo "<p><a href='logout.php'>Click here to logout</a>";

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/fwhphp/public_html/annie/tasks.php:1) in /home/fwhphp/public_html/annie/tasks.php on line 3
User is not logged in
click here to go to login page

No white space before <?