Module 'modulename' already loaded in Unknown on line 0

[Shailesh Humbad]

FYI: The page below describes one possible solution for resolving the
following PHP warning:

PHP Warning: Module 'modulename' already loaded in Unknown on line 0
(modulename may be bz2, ctype, readline, mysql, curl, etc.

http://www.somacon.com/p520.php

Any comments would be appreciated. I hope some people find this useful.