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Date: Fri, 21 Nov 2014 16:27:52 +0000
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Subject: Re: [PHP-DEV] [RFC] Remove PHP 4 Constructors
From: rowan.collins@gmail.com (Rowan Collins)

Johannes Schlüter wrote on 21/11/2014 16:13:
> Hi,
>
> On Fri, 2014-11-21 at 16:48 +0900, Yasuo Ohgaki wrote:
>
>
>> How about use INI until PHP8?
>
> No. php.ini needs less settings not more. Especially not for language
> things. This makes a mess for creating portable code. ze1 compat mode
> was a fault as were other ini settings we had. Let's not go there,
> again.

I agree; the runtime environment is not the right scope to set such options.

I do wonder if it would be useful to make more use of declare() though, 
which is scoped to a single file, and could be used like Perl's Pragmas.

Annoyingly, unrecognised declare() options issue a warning, so you can't 
rely on older versions silently ignoring a new flag such as 
declare(compat_flags=php4_constructors); http://3v4l.org/cikUU

Apparently, @ can't be used to suppress the warning, either, since the 
parser chokes (I guess because declare() isn't really a statement as 
such): http://3v4l.org/DFBfO

I'm not sure it would actually make sense for this case, anyway, but 
some global behaviours would definitely benefit from being scoped this 
way e.g. suppress notices in deprecated / 3rd-party code, but show them 
in your own new modules, or ensure strlen is not over-ridden by mbstring 
in a library which needs to count bytes.

Regards,
-- 
Rowan Collins
[IMSoP]