file_exists permission problem...

[Wexxl]

I am using the file_exists() command, and the following problem occurs:

if I am logged in as an Administrator on my server, I am experiencing no problems: the file I am looking for exists and the return is true.

If I am logged in on a guest-account on this server, the same file does not exist, and therefore false is returned.

This looks like a permission problem, but I have no clue where to look. The guest can reach the certain file directly(type the url to the image), so those rights should be right.

PHP on this server is installed by another person, but I can change things if I'd want to.

Working with:
PHP Version 5.0.3 on Windows NT

I tried another command, the is_readable() function, but the same problems occur here.

[bradgrafelman]

I'm puzzled as to why the results are changing depending on the account that YOU are logged on as. PHP shouldn't be running under the account YOU are logged in as... it should be running as the designated account on the server...