Description:
------------
// autho.php
<?
if( (empty($PHP_AUTH_PW)) || (empty($PHP_AUTH_USER)) ||
($PHP_AUTH_USER!='ramesh') ||
($PHP_AUTH_PW!='asdf'))
{
header('WWW-Authenticate: Basic realm="my first autho"');
exit(" authentication required ");

}

?>
// below is the code used to include the aotho.php in the 
//below script 
//{{QUESTION:}} At times the code works fine and 
//asks for username / password before page is  display but not 
//at all times. sometimes it just shows up the page 
//without username / password. Any reasons?? pls guide!!tks  {{QUESTION:}} 

<?
require_once("autho.php");
?> 


Reproduce code:
---------------
---
From manual page: faq.using
---