Header() is not redirecting PHP [closed]

Answer 1

Make sure to put an exit; or die; after the command: and make the "Location" start with uppercase

if (!isset($_SESSION['SESS_MEMBER_ID']) || (trim($_SESSION['SESS_MEMBER_ID']) == '') AND !isset($fb_login)) {           
    header("Location:login.php?msg=Please+Login+Again.");
    exit;
}