Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:82042
Return-Path: <francois@tekwire.net>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 46684 invoked from network); 6 Feb 2015 14:18:05 -0000
Received: from unknown (HELO lists.php.net) (127.0.0.1)
  by localhost with SMTP; 6 Feb 2015 14:18:05 -0000
Authentication-Results: pb1.pair.com header.from=francois@tekwire.net; sender-id=softfail
Authentication-Results: pb1.pair.com smtp.mail=francois@tekwire.net; spf=softfail; sender-id=softfail
Received-SPF: softfail (pb1.pair.com: domain tekwire.net does not designate 212.27.42.2 as permitted sender)
X-PHP-List-Original-Sender: francois@tekwire.net
X-Host-Fingerprint: 212.27.42.2 smtp2-g21.free.fr  
Received: from [212.27.42.2] ([212.27.42.2:50545] helo=smtp2-g21.free.fr)
	by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP
	id 4F/42-45146-B1DC4D45 for <internals@lists.php.net>; Fri, 06 Feb 2015 09:18:05 -0500
Received: from moorea (unknown [82.240.16.115])
	by smtp2-g21.free.fr (Postfix) with ESMTP id DB88B4B008C;
	Fri,  6 Feb 2015 15:14:38 +0100 (CET)
Reply-To: <francois@tekwire.net>
To: "'Yasuo Ohgaki'" <yohgaki@ohgaki.net>,
	"Dmitry Stogov" <dmitry@zend.com>,
	"Pierre Joye" <pierre.php@gmail.com>
Cc: "'Ivan Enderlin @ Hoa'" <ivan.enderlin@hoa-project.net>,
	<internals@lists.php.net>
References: <CA+9eiLuNjTa8JzBgnZE5iuv5BZ4Kw4Ehk1ivxPUetNSmZ43JMw@mail.gmail.com> <54D37D41.2030706@hoa-project.net> <CAGa2bXa_E27ZK89j-C3c0-Kj8pDY4EN_8U6SQC2K19SNm46wqg@mail.gmail.com> <54D470FA.6000303@hoa-project.net> <CAGa2bXaGE3QWjGxvRadLG0btA5wd1u5bZ=AAo6WQHE_Uek8iaw@mail.gmail.com> <02d301d041f3$0c5f3990$251dacb0$@tekwire.net> <CAGa2bXafsdmTPutaYP_oyX9CbjaRcJyqk0r3_v-ud=yCiQT_SA@mail.gmail.com> <CAGa2bXZnBWoL7NogbQCrfy-80G7xWoD_EJT3KH3v9aPiJ68Csw@mail.gmail.com>
In-Reply-To: <CAGa2bXZnBWoL7NogbQCrfy-80G7xWoD_EJT3KH3v9aPiJ68Csw@mail.gmail.com>
Date: Fri, 6 Feb 2015 15:17:53 +0100
Message-ID: <031501d04217$b393bff0$1abb3fd0$@tekwire.net>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="utf-8"
Content-Transfer-Encoding: quoted-printable
X-Mailer: Microsoft Outlook 14.0
Thread-Index: AQGgxP9HPTh52uHWkGo6jLSeXRdtNAG/QBJNAaMNlcwCFsMP6wB6oLwcArkn1nkCRuYlGQKZuynVnNYzS4A=
Content-Language: fr
X-Antivirus: avast! (VPS 150205-1, 05/02/2015), Outbound message
X-Antivirus-Status: Clean
Subject: RE: [PHP-DEV] Design by Contract
From: francois@tekwire.net (=?utf-8?Q?Fran=C3=A7ois_Laupretre?=)

> De : yohgaki@gmail.com [mailto:yohgaki@gmail.com] De la part de Yasuo =
Ohgaki

> Personally, backward compatibility is not too important.=20
> PHP5 is dead by PHP 7.2 release... This is the reason why.
> It's only 3 years later, only 2 years later after PHP 7.0 release.

That's where we disagree, as I think it's most important.

Thinking that PHP 5 is dead in 3 years is extremely na=C3=AFve IMO. You =
probably didn't live the PHP 4/5 migration but I guess we won't have =
more than 30 % of production servers under PHP 7 in 2018, just due to =
the delays of distros, hosting companies, and others.

Now, suppose you're distributing a library or a framework, like Symfony, =
Doctrine, etc. Someone tells you : "Here's the new DbC feature. You can =
use it but this implies splitting your code to two independent branches =
and maintain them in parallel until you have no PHP 5 customer =
anymore.". What do you think you'll do (or won't do) ?

@Pierre,@Dmitry : you have a better vision than mine on the migration =
process. What's your opinion on forcing software developers to maintain =
two separate branches ?

Once again, the conditions in @assert lines ARE PHP code. There's no new =
syntax. There is no real difference between writing =
'assert(<condition>)' and '@assert <condition>', especially if the =
require/ensure blocks should contain 'assert' statements only.

> What I believe is not important to you. I could be wrong.

It is important. As I may be wrong too.

Cheers

Fran=C3=A7ois