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To: internals@lists.php.net, rene7705 <rene7705@gmail.com>
References: <CADegSEbVU9MxX8e71tvCRLKN4SMLfcX+m=enKo13Wn=05QTEjA@mail.gmail.com>
Date: Thu, 14 Mar 2013 11:45:14 -0000
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Subject: Re: [PHP-DEV] feature request : easy shared memory
From: inefedor@gmail.com ("Nikita Nefedov")

On Thu, 14 Mar 2013 07:05:03 -0000, rene7705 <rene7705@gmail.com> wrote:

> Hi.
>
> I'd like to build a replacement for SQL (yes, talk about an ambitious
> project! ;), because the constant transferal of data in and out of SQL  
> from
> Javascript (where everything might as well be object-oriented and
> hierarchial) is a pain in the neck.
>
> But in order to do so, I'd very much like PHP (the server still controls
> the data after all) to support shared memory efficiently.
>
> Something like
>
> sharedmem $bigNestedArray; // $bigNestedArray would be shared accross the
> entire server and all CPUs on it.
>
> as you now have
>
> global $bigNestedArray;
>
> would be ideal.
>
> I bet this would be useful for a host of other applications as well, and
> fairly easy to implement.
>
> I'm an application programmer by trade, or I would hack this in myself.
>
> I'd much rather see the PHP development team develop this in properly. I
> don't think it would require much time, as OS-level shared memory has  
> been
> easy to implement since the 1990s.
>
> Please put this on the agenda, and get back to us in this thread as to  
> when
> this will be available.

Hi,

You can already do it using APC's apc_store() and apc_fetch() functions  
which let you use shared memory. But of course you should 'commit' every  
change of the fetched variable.