Error: chdir() (errno 20) [closed]

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I have this error when I'm trying to use chdir() in one of my pages:

Warning: chdir() [function.chdir]: Not a directory (errno 20) in /home/**/public_html/index2.php on line 3

I have googled the error and found nothing concerning this error... What could be causing it? file permissions? And how can this be fixed?

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it usually means, that you try to access an object, which is not a directory. This may be checked via is_dir(...).

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From the chdir(2) man page:

   ENOTDIR
          A component of path is not a directory.

So, you're trying to change to something that is some other type of file.