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Date: Sun, 04 Jun 2006 09:03:17 -0700
To: Derick Rethans <derick@php.net>
Cc: Marcus Boerger <helly@php.net>,internals@lists.php.net
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Subject: Re: [PHP-DEV] Missing __toString() part
From: andi@zend.com (Andi Gutmans)

Again, I don't think we should have a hash but a unique id which can 
be used as an array key and in other things. Difference. Hash implies 
that it's not unique, I'm talking about unique. So yes, I'd take the 
starting point of Marcus' proposal but:
a) Make the value start with a letter so that this isn't 
autoconverted but taken as a literal string key. Again, something 
like "id=%p:%d"
b) Not call it hash because I see this as a unique id and not as a 
hash value which is not unique necessarily.
c) This should be something outside SPL and part of the engine. 
Question is again, whether it's explicit or implicit (back to the 
question I had earlier). Do you just want to add a function which 
returns this thing or do you want $arr[$obj] to automatically ask for it.

These are valid questions and should be answered.

Andi

At 08:41 AM 6/4/2006, Derick Rethans wrote:
>On Sun, 4 Jun 2006, Andi Gutmans wrote:
>
> > Yes, I realize that but it doesn't happen today and I don't think 
> we couldn't
> > make this a rule (requiring extensions to have unique id's per classes). In
> > any case, we can always make it the following string:
> > "id=<ht table address in hex>#unique id"
>
>And that is exactly what Marcus already suggested:
>
>         char * hash;
>         int len = 
> spprintf(&hash,0,"%p:%d",Z_OBJ_HT_P(zobj),Z_OBJ_HANDLE_P(zobj));
>
>regards,
>Derick
>
>--
>Derick Rethans
>http://derickrethans.nl | http://ez.no | http://xdebug.org