Is there some benchmark test done for php vs simple php scripts for server loads?

I am planning to create a bunch of facebook apps, some would be kinda complex, others would be a single php file without any db access. I was thinking about using codeigniter for this so I can learn a little more about the framework (im quite new), but I am worried that it could add unnecessary server load with the simple “one php file” apps.

Well, no framework - what so ever - will ever be fast as a single PHP file. Framework, by nature has to include (load) at least some files, so at the very beginning it looses battle against single PHP file.

For more complex files you really have to take in consideration what those files have to do and if in their cases they will be faster / take less memory within the framework.

But single file is single file

Cheers,
Smilie

Thanks, I guess I will use codeigniter for the more complex apps then.