Description:
------------
---
From manual page: http://php.net/manual/zh/features.http-auth.php
---

On this page, the code for the second example is wrong.

the code:
------------------
    header('WWW-Authenticate: Digest realm="'.$realm.
           '" qop="auth" nonce="'.uniqid().'" opaque="'.md5($realm).'"');
------------------

should be:
------------------
    header('WWW-Authenticate: Digest realm="'.$realm.
           '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
------------------

Test script:
---------------
if (empty($_SERVER['PHP_AUTH_DIGEST'])) {
    header('HTTP/1.1 401 Unauthorized');
    header('WWW-Authenticate: Digest realm="'.$realm.
           '", qop="auth", nonce="'.uniqid().'", opaque="'.md5($realm).'"');

    die('Text to send if user hits Cancel button');
}