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Date: Wed, 23 Nov 2011 16:40:25 +0100
Message-ID: <CAH-PCH7HdF4u-kUKw6s5cpBxAe57s7KNPd++2tESmz4NQhmm+g@mail.gmail.com>
To: Daniel Convissor <danielc@analysisandsolutions.com>
Cc: Stas Malyshev <smalyshev@sugarcrm.com>, PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=20cf30334fb516c30604b268bd74
Subject: Re: [PHP-DEV] 5.4 regression: non-existent sub-sub keys now have values
From: tyra3l@gmail.com (Ferenc Kovacs)

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On Wed, Nov 23, 2011 at 4:31 PM, Daniel Convissor <
danielc@analysisandsolutions.com> wrote:

> Hi Again Folks:
>
> On Wed, Nov 23, 2011 at 09:14:09AM -0500, Daniel Convissor wrote:
> > $a =3D 'foo';
> > echo $a['blah'] . "\n";
> >
> > But that second one echos out "f".  This is a huge WTF.
>
> Two things for the record on this front.  First, i've been actively
> using PHP for, what, ten years or so, and have never run into this
> behavior before.  Second, this behavior turns the following one liner:
>
>        if (isset($arr['package']['attribs']['version'])) {
>
> Into this:
>
>        if (is_array($arr)
>                && array_key_exists('package', $arr)
>                && is_array($arr['package'])
>                && array_key_exists('attribs', $arr['package'])
>                && is_array($arr['package']['attribs'])
>                && array_key_exists('version', $arr['package']['attribs'])
>                && !empty($arr['package']['attribs']['version']))
>         {
>

it is only necessary if you can't guarantee your data structure (so that
you can get a string where you expect an array)

--=20
Ferenc Kov=C3=A1cs
@Tyr43l - http://tyrael.hu

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