Speeding up script

[loll]

I have a script that is made up of a series of functions, some of these functions call other functions. I am having speed issues and one thing I have read is that calling functions withinanother function is slow, so what is the best(or correct method) turning the functions into a class, or perhaps turning it into include files and calling the include file when needed?

[Shrike]

Calling a function from within another function is not likely to have much of an effect on speed. More likely it is the functions themselves that are slow. Do you have lots of loops which call functions on a list iteratively? Or are there some intensive functions being used? (preg_* functions for example).

There is no set rules for making a class out of a set of functions. But you should read a little about object oriented programming before setting out on this route.

[Weedpacket]

As Shrike implies, it's best to find out what is really slowing your system down (poor database schema? excessive memory allocation? unproductive busywork code? network pipe too narrow or hardware too slow for the load? misconfigured or trojan-infested server?) before trying to speed it up. Otherwise you might end up making things worse.