Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:94276
Return-Path: <php-php-dev@m.gmane.org>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 63415 invoked from network); 27 Jun 2016 13:02:10 -0000
Received: from unknown (HELO lists.php.net) (127.0.0.1)
  by localhost with SMTP; 27 Jun 2016 13:02:10 -0000
Authentication-Results: pb1.pair.com smtp.mail=php-php-dev@m.gmane.org; spf=pass; sender-id=pass
Authentication-Results: pb1.pair.com header.from=k@rl.pflaesterer.de; sender-id=unknown
Received-SPF: pass (pb1.pair.com: domain m.gmane.org designates 80.91.229.3 as permitted sender)
X-PHP-List-Original-Sender: php-php-dev@m.gmane.org
X-Host-Fingerprint: 80.91.229.3 plane.gmane.org  
Received: from [80.91.229.3] ([80.91.229.3:39711] helo=plane.gmane.org)
	by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP
	id 25/73-40393-EC321775 for <internals@lists.php.net>; Mon, 27 Jun 2016 09:02:08 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <php-php-dev@m.gmane.org>)
	id 1bHWAo-0008Lz-4y
	for internals@lists.php.net; Mon, 27 Jun 2016 15:01:58 +0200
Received: from 213.83.3.2 ([213.83.3.2])
        by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
        id 1AlnuQ-0007hv-00
        for <internals@lists.php.net>; Mon, 27 Jun 2016 15:01:58 +0200
Received: from k by 213.83.3.2 with local (Gmexim 0.1 (Debian))
        id 1AlnuQ-0007hv-00
        for <internals@lists.php.net>; Mon, 27 Jun 2016 15:01:58 +0200
X-Injected-Via-Gmane: http://gmane.org/
To: internals@lists.php.net
Date: Mon, 27 Jun 2016 15:01:50 +0200
Lines: 38
Message-ID: <m1d1n2hjk1.fsf@mbp.pflaesterer.de>
Mime-Version: 1.0
Content-Type: text/plain
X-Gmane-NNTP-Posting-Host: 213.83.3.2
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (darwin)
Cancel-Lock: sha1:x+uiw5nZhH74foo8eUqvw/kll7Q=
Subject: Possible Bug with Interface, Constants and Inheritance
From: k@rl.pflaesterer.de ((Karl =?utf-8?Q?Pfl=C3=A4sterer?=))


Hi,
I'm not sure if it's a bug or not.

Consider these simple script:

<?php
interface I1 { const C1 = '';}
class C3 implements I1 { const C1 = 'c2';}
$c3 = new C3;
var_dump($c3::C1);


That gives a fatal error with mod_php and PHP CLI if I call the CLI
version with a file name:

PHP Fatal error:  Cannot inherit previously-inherited or override
constant C1 from interface I1 in

If I use the CLI and enter the code directly it works:

~> php -v
PHP 7.0.7 (cli) (built: May 27 2016 15:22:32) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
~> php -a -ddispplay_errors=On
Interactive shell

php > interface I1 { const C1 = '';}
php > class C3 implements I1 { const C1 = 'c2';}
php > $c3 = new C3;
php > var_dump($c3::C1);
string(2) "c2"


Is this always the correkt behaviour?

  KP