PHP fopen() Error: failed to open stream

Question

I am getting this error when my php script tries to access text file.

PHP Warning: fopen(UPfileName.txt): failed to open stream: Permission denied in /path/to/script.php

Here are the permissions of my directory and file:

abc/www/file.txt drwxr-xr-x 12 root root abc/ drwxr-xr-x 8 root root www/ -rwxrwxr-x 1 root root file.txt

Please tell what should I do to get ride of this error.

Thanks

Sam