Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:87932
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain craigfrancis.co.uk designates 209.85.212.176 as permitted sender)
Content-Type: text/plain; charset=windows-1252
Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\))
In-Reply-To: <55DDA4C9.9040603@gmail.com>
Date: Wed, 26 Aug 2015 14:53:51 +0100
Cc: internals@lists.php.net
Content-Transfer-Encoding: quoted-printable
Message-ID: <3C69BF4B-52E6-4D04-8601-8D23DFCC538E@craigfrancis.co.uk>
References: <CAKws9z27kVJ87Ur5Qo+ayYHPeeO=aYKpRHUV4TFBXX2iMcgO2A@mail.gmail.com> <55DD4269.4090402@gmail.com> <6348DFA7-04BD-41BB-A500-17A8A531B56C@craigfrancis.co.uk> <55DDA4C9.9040603@gmail.com>
To: Rowan Collins <rowan.collins@gmail.com>
Subject: Re: [PHP-DEV] PHP 7.1 - Address PHPSadness #28?
From: craig@craigfrancis.co.uk (Craig Francis)

On 26 Aug 2015, at 12:36, Rowan Collins <rowan.collins@gmail.com> wrote:

> Fortunately, the function you are looking for already exists: =
http://php.net/array_key_exists



It does, although I seem to have edited that out of my reply... was =
trying to keep it short ;-)

At the moment I'm out of examples (bit busy at the moment), but I do =
know that when I'm doing an isset() check, I'm really wanting to know if =
the variable (or key) exists, where NULL may be a perfectly valid value.

So there is a slight annoyance (and typically a quick fix) to identify =
if the variable has just been set to NULL.







On 26 Aug 2015, at 12:36, Rowan Collins <rowan.collins@gmail.com> wrote:

> Craig Francis wrote on 26/08/2015 12:23:
>>=20
>> If you want some example of where I got this wrong...
>>=20
>> I have a config array [...]
>>=20
>> When creating a URL builder that allowed the query string to be =
passed in as an array [...]
>>=20
>> Neither were major problems, just a slight annoyance (i.e. identified =
and fixed before I committed the code). But I'm normally using an =
isset() as the proposed exists() function would work.
>=20
> Both of these example involve not an undefined variable, but an =
undefined array key, which is a much less controversial scenario.
>=20
> Fortunately, the function you are looking for already exists: =
http://php.net/array_key_exists
>=20
> Regards,
> --=20
> Rowan Collins
> [IMSoP]
>=20
>=20
>=20
> --=20
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php
>=20