Description:
------------
In PHP 4.3.3 include_once() is case-sensitive. This will 
cause some problem on case-insensitive filesystems, such as 
Windows. Please see the reproduce code.

Of course I will never use this teenager-hacker-style 
strings for actual coding, but it means trouble when mixed 
using relative and absolute path within codes. I spent 
hours debugging, only to found it's the "I"netpub directory 
(IIS default setting) name problem.

Yes, this problem can be work-around. But if include_once() 
feels that 'C:/Inetpub/wwwroot/b.php' and 'c:/inetpub/
wwwroot/b.php' are different, please do not let me include 
it, or please give me some warning.

This had never happened in PHP 4.3.2 or previous version.

Reproduce code:
---------------
I've got two files: a.php & b.php, which are put in the same directory. The actual absolute to b.php is 'C:/Inetpub/wwwroot/b.php';

a.php:
<?
$mydir = 'c:/inEtpUB/wwwRoOT';
echo "<P>THIS IS A.PHP";
include_once("b.php");
include_once("$mydir/b.php");
?>

b.php
<?
echo "<P>THIS IS B.PHP";
?>


Expected result:
----------------
THIS IS A.PHP
THIS IS B.PHP

Actual result:
--------------
THIS IS A.PHP
THIS IS B.PHP
THIS IS B.PHP