Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:32510 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 65532 invoked by uid 1010); 1 Oct 2007 11:20:33 -0000 Delivered-To: ezmlm-scan-internals@lists.php.net Delivered-To: ezmlm-internals@lists.php.net Received: (qmail 65516 invoked from network); 1 Oct 2007 11:20:33 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 1 Oct 2007 11:20:33 -0000 Authentication-Results: pb1.pair.com header.from=paul.biggar@gmail.com; sender-id=pass; domainkeys=bad Authentication-Results: pb1.pair.com smtp.mail=paul.biggar@gmail.com; spf=pass; sender-id=pass Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.146.177 as permitted sender) DomainKey-Status: bad X-DomainKeys: Ecelerity dk_validate implementing draft-delany-domainkeys-base-01 X-PHP-List-Original-Sender: paul.biggar@gmail.com X-Host-Fingerprint: 209.85.146.177 wa-out-1112.google.com Received: from [209.85.146.177] ([209.85.146.177:9333] helo=wa-out-1112.google.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 3D/F8-20852-008D0074 for ; Mon, 01 Oct 2007 07:20:33 -0400 Received: by wa-out-1112.google.com with SMTP id l24so4827581waf for ; Mon, 01 Oct 2007 04:20:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=+PkohgA/8pU1J8vgL6FBIWUW3/NBjPIv/tolQ+3H6i0=; b=Iz8EntR58nZ0iXqHt9BQj7GKJ0ir7V/MmUEih1P+j5ONjYin7dhdH1j8Mpg0561mYSC8/BJqPKuh3v/8KYUzgQKilCXxjuMAUN0bkWvB9VscODNpCdq51rSocuAt/5UtggqRLoK+ve5zEwuQEvkMmStljoQ0nKX1POR24KqBgJU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=soomFvGcbVg8OwavQCHElfDVKmgMs0UVA4S+F9oZasYj0zIaJbRJGl5W7wjRdoyedBKA+131ucQJgW32yYRYEJpTy04A2EyuP+Zld91p/dnHpoiy6zuRlBVTyl2yhJ8nRyo/knQlywHg4CMTOi+5RLL4xj4G8m3yHpVvMoT5/c0= Received: by 10.114.120.1 with SMTP id s1mr4768898wac.1191237629678; Mon, 01 Oct 2007 04:20:29 -0700 (PDT) Received: by 10.114.130.7 with HTTP; Mon, 1 Oct 2007 04:20:29 -0700 (PDT) Message-ID: Date: Mon, 1 Oct 2007 12:20:29 +0100 To: internals@lists.php.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Subject: Re: Compiled variables and backpatching From: paul.biggar@gmail.com ("Paul Biggar") Hi, Stanislav wrote me a very useful reply to my CV questions. I wonder if anyone has time to give me a quick note on backpatching, and what that is? On 9/23/07, Paul Biggar wrote: > What is backpatching? > Is it related to compiled variables, or are they different concepts? > Why was backpatching necessary? > Is this performance related, and what performance impact does backpatching have? Thanks a lot, Paul -- Paul Biggar paul.biggar@gmail.com