Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:48771 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 89824 invoked from network); 14 Jun 2010 11:45:47 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 14 Jun 2010 11:45:47 -0000 Authentication-Results: pb1.pair.com smtp.mail=brian@moonspot.net; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=brian@moonspot.net; sender-id=pass Received-SPF: pass (pb1.pair.com: domain moonspot.net designates 72.5.90.27 as permitted sender) X-PHP-List-Original-Sender: brian@moonspot.net X-Host-Fingerprint: 72.5.90.27 smtp.dealnews.com Linux 2.5 (sometimes 2.4) (4) Received: from [72.5.90.27] ([72.5.90.27:37363] helo=smtp.dealnews.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 28/23-07295-966161C4 for ; Mon, 14 Jun 2010 07:45:46 -0400 Received: (qmail 3731 invoked from network); 14 Jun 2010 11:45:35 -0000 Received: from unknown (HELO mail.dealnews.com) (10.1.10.7) by -H with ESMTPS (DHE-RSA-AES256-SHA encrypted); 14 Jun 2010 11:45:35 -0000 Received: (qmail 6304 invoked from network); 14 Jun 2010 11:45:42 -0000 Received: from h105.248.18.98.static.ip.windstream.net (HELO macdough.local) (brianm@98.18.248.105) by -H with ESMTPA; 14 Jun 2010 11:45:42 -0000 Message-ID: <4C161666.2010905@moonspot.net> Date: Mon, 14 Jun 2010 06:45:42 -0500 User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Michael Wallner CC: internals@lists.php.net References: <4C1275AB.8000201@moonspot.net> <0D.1E.04758.B40D51C4@pb1.pair.com> In-Reply-To: <0D.1E.04758.B40D51C4@pb1.pair.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [PHP-DEV] Re: Detecting if a null variable exists? From: brian@moonspot.net (Brian Moon) > php -r 'function f(){$f=null; var_dump(array_key_exists("f", > get_defined_vars()));} f();' So, two function calls? That is not a solution to simply check if a variable has been created. You are creating an array and operating on said array. It should be a language construct. Why use an array function to decide something about a non-array variable? Brian. -------- http://brian.moonspot.net/