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Date: Sat, 16 Jun 2007 18:08:52 -0700
To: Robert Lemke <robert@typo3.org>
Subject: Re: [PHP-DEV] PHP6 an unicode in practice - wanted behaviour for array indices?
From: andrei@gravitonic.com (Andrei Zmievski)

Yeah, this should be fixed. I'll try to do it over the weekend.

-Andrei


On Jun 15, 2007, at 3:25 AM, Robert Lemke wrote:

> Hi folks,
>
> I am currently developing the next major version of TYPO3, a PHP  
> based content management system. As we take advantage of the new  
> Unicode features (among other things) it will be completely based  
> on and rely on PHP6 with unicode.semantics turned on. (Sidenode: My  
> veto would be that unicode.semantics would be turned on by default,  
> but I trust on that you take the right decision and then we'll  
> adapt to it). We bypassed all backward compatibility issues by just  
> starting from scratch again ...
>
> Anyway, using the latest CVS version, I stumbled over a behaviour I  
> didn't expect and I'd like to ask you if that is a wanted behaviour  
> or a bug.
>
> Consider the following code (unicode semantics = on):
>
>    preg_match('/(?P<character>\w),/', 'a,b,c,d', $matches);
>    echo (isset($matches['character']) ? 'yes ' : 'no ');
>
> The expected output is "yes", but it returns "no". The reason is  
> that the index "character" in the
> array returned by preg_match seemst to be a binary string, not  
> unicode as I expected:
>
>    preg_match('/(?P<character>\w),/', 'a,b,c,d', $matches);
>    echo (isset($matches[(binary)'character']) ? 'yes ' : 'no ');
>    echo (isset($matches[(unicode)'character']) ? 'yes ' : 'no ');
>
> This code outputs "yes no".
>
> A bit worse even:
>
> preg_match('/(?P<character>\w),/', 'a,b,c,d', $matches);
> echo (isset($matches[(unicode)'character']) ? 'yes ' : 'no ');
> extract($matches);
> echo(gettype($character) . ' ');
> $matches = compact($character);
> echo (isset($matches[(unicode)'character']) ? 'yes ' : 'no ');
>
> The output is "no unicode no".
>
> Sorry if I understood something wrong here, but to me it looks like  
> a little inconsistency.
>
> Cheers,
> Robert
>
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