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Posted by Erwin Moller on 12/27/05 14:24
Zeppelin wrote:
> Hi,
>
> I have to port from asp a script that adds an ip to a list in plain
> text or an array. I need not using a database or filesystem, it has to
> be stored in memory in order that giving us best performance (it should
> be accessed continuously).
Hi,
The easiest way is just including a file at top of your scripts.
Into that file you define some constants or variables.
>
> I've tried defining $_ENV vars, using apache_setenv(..), creating a
> class with a static var... but nothing results.
Don't.
:-)
Just include a file.
>
> In asp the script writes an reads an Application variable defined in
> global.asa... is it impossible to port? isn't it a very big error of
> php?
No, this isn't a big error.
If you worry about performance, don't.
Files that are accessed a lot of time will be placed in cache (memory) if
possible by the OS.
Thus no performancepenalty.
On a sidenote: I don't understand why so many people worry about performance
when they do not have a performanceproblem.
My guess is that over 90% of all performanceproblems are databaserelated
(bad queries, no indexing, etc) and not scriptinglanguage related.
If you absolutely want to use shared memory in PHP, that is possible.
I do n't remember the name of the package, but if you look around I am sure
you will find it.
My advise is however: Just include a file.
Regards,
Erwin Moller
>
> thanks
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