Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:60791 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 16559 invoked from network); 11 Jun 2012 19:13:52 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 11 Jun 2012 19:13:52 -0000 Authentication-Results: pb1.pair.com header.from=smalyshev@sugarcrm.com; sender-id=pass Authentication-Results: pb1.pair.com smtp.mail=smalyshev@sugarcrm.com; spf=pass; sender-id=pass Received-SPF: pass (pb1.pair.com: domain sugarcrm.com designates 67.192.241.155 as permitted sender) X-PHP-List-Original-Sender: smalyshev@sugarcrm.com X-Host-Fingerprint: 67.192.241.155 smtp155.dfw.emailsrvr.com Linux 2.6 Received: from [67.192.241.155] ([67.192.241.155:53437] helo=smtp155.dfw.emailsrvr.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id F9/74-18025-E6346DF4 for ; Mon, 11 Jun 2012 15:13:51 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp32.relay.dfw1a.emailsrvr.com (SMTP Server) with ESMTP id EBA6C50119; Mon, 11 Jun 2012 15:13:47 -0400 (EDT) X-Virus-Scanned: OK Received: by smtp32.relay.dfw1a.emailsrvr.com (Authenticated sender: smalyshev-AT-sugarcrm.com) with ESMTPSA id 91E7F500E4; Mon, 11 Jun 2012 15:13:47 -0400 (EDT) Message-ID: <4FD6436B.1080200@sugarcrm.com> Date: Mon, 11 Jun 2012 12:13:47 -0700 Organization: SugarCRM User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Richard Lynch CC: "internals@lists.php.net" References: <496E551C-85F0-423E-89FA-2C5245808320@easen.co.uk> <4D309A4D.9020904@sugarcrm.com> <4FCD07CA.7030605@easen.co.uk> <131ff485e2f37a4388919f1c61fd4816.squirrel@www.l-i-e.com> In-Reply-To: <131ff485e2f37a4388919f1c61fd4816.squirrel@www.l-i-e.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [PHP-DEV] Support negative indexes for arrays and strings From: smalyshev@sugarcrm.com (Stas Malyshev) Hi! >> Can be: >> $var = 'abc'; >> echo $var[-1]; > > This seems simple enough for a hard-coded -1, but... > > Would $var[-2] be strlen($var) - 2 and so on? The main question is what happens with "foo"[-4] or ['x'][-2]. > And then one would expect some rather complex logic to compute -N for > $var[-N] I don't see much of complex logic here, but $a[2] = 'a' would create a new array element if it does not exist, while $a[-2] can't. Not a big issue, but somewhat inconsistent I guess. -- Stanislav Malyshev, Software Architect SugarCRM: http://www.sugarcrm.com/ (408)454-6900 ext. 227