Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:75393 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 26108 invoked from network); 13 Jul 2014 12:56:17 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 13 Jul 2014 12:56:17 -0000 Authentication-Results: pb1.pair.com smtp.mail=ajf@ajf.me; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=ajf@ajf.me; sender-id=pass Received-SPF: pass (pb1.pair.com: domain ajf.me designates 192.64.116.216 as permitted sender) X-PHP-List-Original-Sender: ajf@ajf.me X-Host-Fingerprint: 192.64.116.216 imap10-3.ox.privateemail.com Received: from [192.64.116.216] ([192.64.116.216:47044] helo=imap10-3.ox.privateemail.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id F7/81-16748-FE182C35 for ; Sun, 13 Jul 2014 08:56:17 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.privateemail.com (Postfix) with ESMTP id 70A0A2400C6; Sun, 13 Jul 2014 08:56:13 -0400 (EDT) X-Virus-Scanned: Debian amavisd-new at imap10.ox.privateemail.com Received: from mail.privateemail.com ([127.0.0.1]) by localhost (imap10.ox.privateemail.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id lz88q2uyyOre; Sun, 13 Jul 2014 08:56:13 -0400 (EDT) Received: from [192.168.0.15] (unknown [90.210.122.167]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.privateemail.com (Postfix) with ESMTPSA id 5EB7E2400C2; Sun, 13 Jul 2014 08:56:12 -0400 (EDT) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) In-Reply-To: <53C28081.10005@gmail.com> Date: Sun, 13 Jul 2014 13:56:08 +0100 Cc: internals@lists.php.net Content-Transfer-Encoding: quoted-printable Message-ID: References: <08503591-EFC8-48E6-984E-FFC292C5EA5F@ajf.me> <53C28081.10005@gmail.com> To: Jocelyn Fournier X-Mailer: Apple Mail (2.1878.6) Subject: Re: [PHP-DEV] [RFC] Scalar Type Hinting With Casts (re-opening) From: ajf@ajf.me (Andrea Faulds) On 13 Jul 2014, at 13:50, Jocelyn Fournier = wrote: > Would it possible to control the implicit casting through a PHP = variable ? (or perhaps modify E_STRICT to display a warning if this kind = of implicit cast is done ?) No. I mean, yes, it=92s possible, but allowing the effective function = signature of a function to change based on some variable or ini setting = does not sound like a good idea to me. > I mean specifying explicitly a type is often useful to make sure the = proper type is passed to the function, and there's no bug in the calling = func. >=20 > e.g. safety check like >=20 > function foo($bar) { > if (!is_int($bar)) { > throw new Exception('Invalid parameter type'); > } > } >=20 > will not be "equivalent" to >=20 > function foo(int $bar) { >=20 > } >=20 > and there will be no way to have an equivalent behaviour once "type = hinting" is used ! You just demonstrated one: > function foo($bar) { > if (!is_int($bar)) { > throw new Exception('Invalid parameter type'); > } > } If you really want to continue doing that, nothing would stop you. -- Andrea Faulds http://ajf.me/