Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:30451 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 14538 invoked by uid 1010); 4 Jul 2007 19:23:45 -0000 Delivered-To: ezmlm-scan-internals@lists.php.net Delivered-To: ezmlm-internals@lists.php.net Received: (qmail 14523 invoked from network); 4 Jul 2007 19:23:45 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 4 Jul 2007 19:23:45 -0000 Authentication-Results: pb1.pair.com smtp.mail=stas@zend.com; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=stas@zend.com; sender-id=pass Received-SPF: pass (pb1.pair.com: domain zend.com designates 63.205.162.114 as permitted sender) X-PHP-List-Original-Sender: stas@zend.com X-Host-Fingerprint: 63.205.162.114 unknown Windows 2000 SP4, XP SP1 Received: from [63.205.162.114] ([63.205.162.114:30411] helo=us-ex1.zend.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 20/43-25128-0C3FB864 for ; Wed, 04 Jul 2007 15:23:45 -0400 Received: from [127.0.0.1] ([192.168.17.19]) by us-ex1.zend.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 4 Jul 2007 12:23:41 -0700 Message-ID: <468BF3BA.2080904@zend.com> Date: Wed, 04 Jul 2007 12:23:38 -0700 Organization: Zend Technologies User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: =?ISO-8859-1?Q?David_Z=FClke?= CC: internals internals , Marcus Boerger , Sebastian Bergmann , Pavel Shevaev References: <468519DC.8060502@widescreen.ch> <4685785E.5010709@zend.com> <585221804.20070701154538@marcus-boerger.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 04 Jul 2007 19:23:41.0392 (UTC) FILETIME=[D47CED00:01C7BE70] Subject: Re: [PHP-DEV] toString() and Object #ID From: stas@zend.com (Stanislav Malyshev) > Not quite. It creates a hash of an object, so two objects with the same > data yield the same hashes: > > var_dump(spl_object_hash(new stdClass()), spl_object_hash(new stdClass())); here's the code of spl_object_hash: len = spprintf(&hash, 0, "%p:%d", Z_OBJ_HT_P(obj), Z_OBJ_HANDLE_P(obj)); md5str[0] = '\0'; PHP_MD5Init(&context); PHP_MD5Update(&context, (unsigned char*)hash, len); PHP_MD5Final(digest, &context); make_digest(md5str, digest); RETVAL_STRING(md5str, 1); See any mention of object data? It's not there. -- Stanislav Malyshev, Zend Software Architect stas@zend.com http://www.zend.com/ (408)253-8829 MSN: stas@zend.com