picking up dynamic php pages

I apologize in advance as this is probably a common problem and question. I have read through the docs and played with the config files, but I am unable to find a answer. I'm new to the mailing list so here goes.

I have successfully installed htdig and have a working search. However only static html pages are included in the database. I need to include company listings from records in a MySQL database. Normally the user accesses details for a particular company from a list of results via a search page. This information needs to be included in the web site search.

Can someone suggest how to get the search functioning as desired?

Thanks.