Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:51887
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.216.170 as permitted sender)
DomainKey-Status: bad
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:reply-to:in-reply-to:references:from:date:message-id
         :subject:to:cc:content-type:content-transfer-encoding;
        b=ZvC0ofiS5Qlb1DqfDTeWlazgrzeVPNojPKpy+6BvIe0+1wd0VKldb8sq0Km1g06x94
         eTQD6pbsJUm4V9DZlyMFxBww/u0QkhIPBsHyXZ/GNlrtJh7/YQ3L8tvG5rRX+l/60Axt
         P748mVMTfVwc5FViekdZn/uC3XuqU6drnQ3sk=
MIME-Version: 1.0
Reply-To: RQuadling@googlemail.com
In-Reply-To: <4DA6C74F.2020104@thelounge.net>
References: <AANLkTiknomAsTrsZ140rWs6CwxJP3UYGUokQbERhDiRp@mail.gmail.com>
 <4D950434.3060704@yahoo.com.au> <BANLkTinzb5xiD8j7ZXB+cT4EBZY3DF6BYQ@mail.gmail.com>
 <4D9E0543.1080600@lerdorf.com> <69.82.36433.EC33E9D4@pb1.pair.com>
 <4D9E34C4.5000406@lerdorf.com> <4D9E429B.20503@sugarcrm.com>
 <4D9E96B6.6060401@lerdorf.com> <BANLkTi=LvYLaOoGgrzrWfYbQ+t9Wzv_XeQ@mail.gmail.com>
 <BANLkTim6ZBWw66rzx_gSvWc9E45EZx2_gw@mail.gmail.com> <BANLkTinxG6FtOqa8KzmvgTT1EFfM-6prow@mail.gmail.com>
 <BANLkTinsnqGSVTz=XPhCfX95mfeJ_pkhCg@mail.gmail.com> <BANLkTi=nwij4sfkKnNdM_NP9w2CArK6NHQ@mail.gmail.com>
 <BANLkTikghRix9VbpHDx+rnCRtnjdjeshmg@mail.gmail.com> <718216446.20110408143441@cypressintegrated.com>
 <4DA0E71C.9030008@gmail.com> <BANLkTi=jJTO3qgjN8=3DCKAV88pnvycVsA@mail.gmail.com>
 <op.vtp8l9jnr8a5bd@localhost> <4DA63ED8.4080402@yahoo.com.au>
 <op.vtw5fnjar8a5bd@localhost> <BANLkTi=jFJpqEX+8_yiCZbKVkYc1+EhnSw@mail.gmail.com>
 <BANLkTinPUnzXpfj8AVeaUBi1YSgveCzrPA@mail.gmail.com> <4DA6C74F.2020104@thelounge.net>
Date: Thu, 14 Apr 2011 11:18:41 +0100
Message-ID: <BANLkTiko+nDcwrpSv1aSHncUkcBPymB0LQ@mail.gmail.com>
To: Reindl Harald <h.reindl@thelounge.net>
Cc: internals@lists.php.net
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Subject: Re: [PHP-DEV] Implicit isset/isempty check on short-ternary operator
From: rquadling@gmail.com (Richard Quadling)

On 14 April 2011 11:07, Reindl Harald <h.reindl@thelounge.net> wrote:
>
> Am 14.04.2011 12:02, schrieb Richard Quadling:
>
>> I always declare my variables. So, I don't want to use isset() as they
>> will be an incorrect test. I use is_null(). Specifically testing the
>> value. If I've made a mistake and NOT declared the variable (or made a
>> typo), I want to know. I don't want to hide it with isset()/empty()
>
> yes and no
>
> $config['modulename'] =3D array
> (
> =C2=A0'icon' =3D> 'bla.gif',
> =C2=A0'default_params' =3D> array
> =C2=A0(
> =C2=A0'autocleanup' =C2=A0 =C2=A0 =C2=A0 =3D> 1,
> =C2=A0'ignore_user_abort' =3D> 0,
> =C2=A0)
> );
>
>
> if 'default_params' are optional you NEED isset() to decide
> do something with them or skip operations
>
>

I think that depends upon the developer.

I don't mix the tests for existence.

Mixing the tests means a typo in the isset() will hide the lack of existenc=
e.

But array_key_exists() is not going to do that. If the key exists then
I can process it. If not, then I can't.





--=20
Richard Quadling
Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY