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To: Rowan Collins <rowan.collins@gmail.com>, bishop@php.net
Cc: Nikita Popov <nikita.ppv@gmail.com>,
 PHP internals <internals@lists.php.net>
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Date: Tue, 12 Feb 2019 17:41:35 +0100
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Subject: Re: [PHP-DEV] Convert ext/xml to use an object instead of resource
From: cmbecker69@gmx.de ("Christoph M. Becker")

On 12.02.2019 at 17:04, Rowan Collins wrote:

> On Tue, 12 Feb 2019 at 15:30, Bishop Bettini <bishop@php.net> wrote:
> 
>> +1 for movement away from resources, generally.
>>
>> Resources represent connections to external resources, in a manner that's
>> opaque to userland [1]. Would it make sense to update is_resource (and
>> friends) to be aware that "resources" returned from xml_parser_* are not
>> resources proper, but rather resources nominal?
> 
> While such a feature would have limited use in this case, as Johannes
> points out, it might be a nice general pattern to establish for migrating
> other resources in future. All such objects could implement an empty
> "Resource" interface, which couldn't be implemented directly from userland,
> and just triggered this magic behaviour.
> 
> There would still be other BC impacts, though; for instance, gettype()
> would return "object" instead of "resource", unless we overloaded that
> based on the interface as well, which might be a bit confusing.

And we must not forget that resource to int conversion is clearly
defined, while object to int conversion is not.

-- 
Christoph M. Becker