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Date: Tue, 29 Jan 2013 15:32:52 +0000
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Subject: Re: [PHP-DEV] Thread Safe ...
From: lester@lsces.co.uk (Lester Caine)

Ferenc Kovacs wrote:
> On Tue, Jan 29, 2013 at 1:29 PM, Lester Caine <lester@lsces.co.uk> wrote:
>
>> Can someone please fill in a little information here. When we start
>> looking at multiple threads doing for example database lookups in parallel
>> with the main page generation. Does that involve 'thread safe' or is it
>> done in a different way? Scheduling a data lookup on one thread while
>> building the page the information is to be displayed on seems like a case
>> for threading in the web server?
>>
>>
> we don't have threads in userspace in php, sou you can't do concurrent
> execution of any function, but there are a couple of extensions providing
> some way for concurrent/async execution.
> for the scenario what you described one can use multiple db connections and
> async queries
> http://www.php.net/manual/en/mysqli.poll.php#refsect1-mysqli.poll-examplesfor
> mysql
> or just a single connection and doing some other work (like rendering the
> layout) while waiting for the results.
> if you are interested in a generic solution for concurrent execution you
> could look into http://php.net/manual/en/book.pthreads.php

Thanks ...
That confirms what I thought. In order to add concurrent operations which to my 
mind are of more use than 'accessors' we do need ZTS mode enabled. This is I 
think a perfectly valid reason for wanting to maintain ZTS in the future?

-- 
Lester Caine - G8HFL
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