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You could write it in assembly to get even more speed... but like matsp pointed out, you probably won't notice any difference, and PHP is far easier.

And an Apache module can?

Even if you want to do it in C/C++, calling it from PHP is probably an easier choice.

With caching, it won't be CPU-intensive on average. If you have few enough...

And search is probably going to be implemented by MySQL anyways.

That would depend on the application.


I have never written an Apache module, but it would be a very unusual way to go about doing it to say the least, and quite possibly very difficult.

A...

They are often used together - PHP installed as an Apache module, and MySQL for database (accessed by PHP).

I suggest PHP (you can call a C program to do the calculations from a PHP script if...