Description:
------------
I'm reposting this, which is the same as #48778, as I don't think that 
issue is a duplicate of #48746.

If my Apache's DocumentRoot directory is a junction point, PHP fails to 
open the actual file I'm trying to load.

For example, if I use C:/my_junction as the DocumentRoot, and try to 
load index.php found in that directory, it fails and PHP spits the 
following (see actual result).

Using the CLI version, I made sure file_exists returned true:

c:\xampp\php\php.exe -r 
"var_dump(file_exists('c:\my_junction\index.php'));"
boolean(true)

Reproduce code:
---------------
- linkd c:\my_junction c:\some_other_dir
- Create index.php in c:\my_junction, containing anything
- Change apache config to use c:\my_junction as it's DocumentRoot
- Try to load http://<apache_server_address>/index.php

Note: linkd comes from the Windows 2000 Resource Kit:
"Links an NTFS directory to a target valid object name in Windows 2000."
I think there's other ways to create junction points; see #48746 for examples.

Expected result:
----------------
Correctly load index.php

Actual result:
--------------
The following is logged in Apache's error_log, and appears in my 
browser:

Warning: Unknown: failed to open stream: No such file or directory in 
Unknown on line 0

Fatal error: Unknown: Failed opening required 'C:/my_junction/index.php' 
(include_path='.;C:\xampp\php\PEAR') in Unknown on line 0