[sdeming]

Hello,

Just to clarify, typically CGI invokes a new process for each access, whereas with mod_php this isn't the case. With mod_php the data is passed inline to the PHP processor via the apache module interface, similar to CGI but not. There are ways to speed up CGI processing such as FastCGI, and if you are using perl mod_perl though these are inherently insecure in a shared hosting environment.

BBS's and Forums generally create a lot of traffic and can eat up CPU cycles real fast when they are executed via CGI and not the Apache module interface. Quite honestly, all of the really good forums are written in PHP/MySQL anyway.