Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:88290 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 63704 invoked from network); 17 Sep 2015 22:11:58 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 17 Sep 2015 22:11:58 -0000 Authentication-Results: pb1.pair.com smtp.mail=rowan.collins@gmail.com; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=rowan.collins@gmail.com; sender-id=pass Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.212.182 as permitted sender) X-PHP-List-Original-Sender: rowan.collins@gmail.com X-Host-Fingerprint: 209.85.212.182 mail-wi0-f182.google.com Received: from [209.85.212.182] ([209.85.212.182:36736] helo=mail-wi0-f182.google.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id F3/11-56569-DAA3BF55 for ; Thu, 17 Sep 2015 18:11:58 -0400 Received: by wicgb1 with SMTP id gb1so9066532wic.1 for ; Thu, 17 Sep 2015 15:11:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-type:content-transfer-encoding; bh=UhP9sKvxvAei/6CtHsHLFoUYnMdysDImtWYqJVsK5N4=; b=ajvRdYHyo4dA61QAJCj3XLseriKboG07VVA/h4I3WAHxqnBC/2Gqw5O7+WIivcil5h NTV4ZfjMv6lJnFlsmVAXgOLtO9+hVYDSjU+0Kh3ZDTIay+BXwCjMugASfJQrundtBNoo xHjaTnrwTkvRQGLHBIxnanEEiyazDDw2d9FmxYXNHyOL2wL0eRafxOT7VnE0dX4YeHSW g++ieMS5ouOp+UPc7w87nW7iiaEWwKwluSmiZsfLh6xjsu3WMywlAqcOpFaOw/VZIwOU Uz4FgyymsdisJdJ8Mq2xzAGhMNijsRyC9MwnDf0vfpwmJBwq7Z0Iyw5dzEKXWbxdTimS vASg== X-Received: by 10.180.20.15 with SMTP id j15mr12115247wie.76.1442527915441; Thu, 17 Sep 2015 15:11:55 -0700 (PDT) Received: from [192.168.0.5] (cpc68956-brig15-2-0-cust215.3-3.cable.virginm.net. [82.6.24.216]) by smtp.googlemail.com with ESMTPSA id lz10sm5489629wjb.48.2015.09.17.15.11.54 for (version=TLSv1/SSLv3 cipher=OTHER); Thu, 17 Sep 2015 15:11:54 -0700 (PDT) To: internals@lists.php.net References: <55E6EC36.6090301@gmail.com> <9AF329EC-99A5-412D-A52B-432627A5520F@gmail.com> <6F4D91EE-B56E-4B83-B1AF-598C3F6897FC@craigfrancis.co.uk> <55F07BA4.2000204@gmail.com> <55F6B911.9080400@gmail.com> <96BE7F01-D04B-483B-B1A3-B45CED6DFCDC@craigfrancis.co.uk> <55F6F08C.1020506@gmail.com> <0BEF6D82-CB5F-49F6-A3A4-3267924A0CDA@thesba.com> <55F72CA9.2060301@gmail.com> <09369945-76FE-4E08-9C2C-15FB0577AD27@thesba.com> <55F752E7.9070801@gmail.com> <55F9B4C7.3050700@gmail.com> <440C64A2-4B4F-4AEF-ACE3-F3A6637EBAB6@thesba.com> <55F9D704.5050002@lsces.co.uk> <55F9EFA2.9020908@lsces.co.uk> <0022A1D9-DC37-4F49-B58E-FBED5AF872BA@gmail.com> <55F9FAB3.2050100@lsces.co.uk> <55FB19CB.7080707@gmail.com> Message-ID: <55FB3AAA.4050406@gmail.com> Date: Thu, 17 Sep 2015 23:11:54 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <55FB19CB.7080707@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [PHP-DEV] PHP 7.1 - Address PHPSadness #28? From: rowan.collins@gmail.com (Rowan Collins) On 17/09/2015 20:51, Rowan Collins wrote: > What would really be handy in a case like this is the ability to > create your own null-like values, guaranteed to be distinct from all > other values: > > type hidden extends \php\basetypes\terminal {} > type default extends \php\basetypes\terminal {} > > $checklist = hidden; > gettype($checklist); // 'hidden' > $checklist == hidden; // true > $checklist == deafult; // false > isset($checklist); // true I realised after I wrote it that this particular train of thought has basically led me to enums. *drafts new thread about adding enums to PHP* Regards, -- Rowan Collins [IMSoP]