From: Nick Brown <nick@...>
Date: 2010-02-28T12:25:41+09:00
Subject: Re: scope question

> But it's generally considered good form to not use global variables in 
> the first place.  There's almost always a way to avoid using them. The 
> danger of using them is that if you use a global variable with your 
> code, and someone else uses a global variable of the same name in their 
> code, the two bits of code will both break if they are ever run 
> together.

Raul: I believe it would also be bad form to hit the database 
unnecessarily with every pageview. If It's bad form to cache data in a 
variable that is visible to every page, then I don't want to be good ;-)

Is there a "better" way to do this than @@? Why do constants have 
different scopes than regular variables?
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