Http Authentication - Apache and PHP4

[Ratterbox]

Hi, Im trying to use Http Authenticating with apache and php4.
The code im using is

<?php
  if (!isset($_SERVER['PHP_AUTH_USER'])) {
    header('WWW-Authenticate: Basic realm="My Realm"');
    header('HTTP/1.0 401 Unauthorized');
    echo 'Text to send if user hits Cancel button';
    exit;
  } else {
    echo "<p>Hello {$_SERVER['PHP_AUTH_USER']}.</p>";
    echo "<p>You entered {$_SERVER['PHP_AUTH_PW']} as your password.</p>";
  }
?> 

The problem is that the php variables PHP_AUTH_USER & PHP_AUTH_PW are said to be undefined.

[Sun Feb 01 23:11:38 2004] [error] [client 127.0.0.1] PHP Notice: Undefined variable: PHP_AUTH_USER in D:\Web\login.php on line 8
[Sun Feb 01 23:11:38 2004] [error] [client 127.0.0.1] PHP Notice: Undefined variable: PHP_AUTH_PW in D:\Web\login.php on line 9

How do I fix this??

thanks.

[findapollo]

Try doing it without the curly brackets like so:
else{
echo"<p>Hello ".$SERVER['PHP_AUTH_USER'].".</p>";
echo"<p>You entered ".$_SERVER['PHP_AUTH_PW']." as your password.</p>";
}

The periods just concatenate before the echo.

Findapollo