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Date: Sun, 9 Mar 2014 09:50:52 +0100
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To: Marco Schuster <marco@m-s-d.eu>
Cc: internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Idea: ifdef-like feature to ease userland BC
From: pierre.php@gmail.com (Pierre Joye)

hi Marco,

On Sat, Mar 8, 2014 at 10:34 PM, Marco Schuster <marco@m-s-d.eu> wrote:
> Hi Internals,
>
> especially with (radical) userland API changes coming up in PHP6,
> might I suggest something like a ifdef feature which turns blocks of
> code into comments?
> This would allow framework authors to provide backwards compatibility
> with "older" PHP versions while being able to take advantage of new
> PHP features.
> In theory, it could also be supplied as "update" to the already
> existing minor versions (5.4,5.5 and 5.6) so that these versions can
> also use the new code.

We had a similar discussion about adding conditional blocks using the
php version some time ago.

One of the main point against adding such feature was that packagers
tools are a better place to deal with that. I agree it won't solve the
multiple files requirement if one project like to use newer syntax
while keeping compatibility with older php versions, but I do not see
that as a bad thing.


Cheers,
-- 
Pierre

@pierrejoye | http://www.libgd.org