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Date: Thu, 24 Nov 2011 10:16:29 +0100
Message-ID: <CAH-PCH4UXLT5-Lq_pVMzZnrV_+isuU-c07_0F6oDw6bpzG0b6A@mail.gmail.com>
To: David Muir <davidkmuir@gmail.com>
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	Daniel Convissor <danielc@analysisandsolutions.com>, Lester Caine <lester@lsces.co.uk>, 
	PHP internals <internals@lists.php.net>
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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 Thu, Nov 24, 2011 at 3:41 AM, David Muir <davidkmuir@gmail.com> wrote:

>  On 24/11/11 12:44, Ferenc Kovacs wrote:
>
>
>
> On Thu, Nov 24, 2011 at 1:38 AM, David Muir <davidkmuir@gmail.com> wrote:
>
>> Just to clarify, the changes introduced in 5.4 will result in the
>> following:
>>
>> <?php
>>
>> $string =3D 'foo';
>> $array =3D array(
>>    'foo' =3D> array(
>>        'bar' =3D> 'baz',
>>        //expected structure
>>        //'bar' =3D> array('baz' =3D> array('values'))
>> ));
>>
>> var_dump(
>>    isset($string['foo']), //true
>>    isset($string[0][0]), //false, true in 5.4
>>    isset($array['foo']['bar'][0]), //true
>>    isset($array['foo']['bar']['baz']), //true
>>    isset($array['foo']['bar']['baz']['0']) //false, true as of 5.4
>>    isset($string['foo']['bar']['baz']['0']) //false, true as of 5.4
>> );
>>
>
>  you are missing a comma from the end of the
> isset($array['foo']['bar']['baz']['0']) //false, true as of 5.4
>  line
>
>
> Yeah, I added that one at the last minute. That's what I get for a quick
> copy/paste...
>
>
>
>  isset($string['foo']['bar']['baz']['0']) //false, true as of 5.4
> gives me a fatal error on 5.3 ("PHP Fatal error:  Cannot use string offse=
t
> as an array" as you can't "chain" string offsets before 5.4)
>
>
> It gives me false in 5.3.6. Using it outside of isset() results in the
> fatal error.
>

hm.

tyrael@thor:~$ php -r '$string =3D
"foo";isset($string["foo"]["bar"]["baz"]["0"]);';
PHP Fatal error:  Cannot use string offset as an array in Command line code
on line 1
tyrael@thor:~$ php -v
PHP 5.3.8-1~dotdeb.2 with Suhosin-Patch (cli) (built: Aug 25 2011 13:30:46)
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
    with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH

I will check this against a vanilla version, as there is a chance that
either dotdeb(less likely) or suhosin patched something.

--=20
Ferenc Kov=C3=A1cs
@Tyr43l - http://tyrael.hu

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