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Date: Wed, 3 May 2006 09:39:02 +0200
Reply-To: Marcus Boerger <helly@php.net>
Message-ID: <10810599259.20060503093902@marcus-boerger.de>
To: Brandon Fosdick <bfoz@bfoz.net>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] zend_class_entry.create_object
From: helly@php.net (Marcus Boerger)

Hello Brandon,

  create_object is your new handler that is supposed to deliver an empty
object. You cannot have this NULL. The __construct part allows to define
what the actual constructor does afterwards. Forcing __construct to be
called is a bit more complicated but a bunch of exts already do so. Check
out pdo on that.

regards
marcus

Wednesday, May 3, 2006, 8:24:41 AM, you wrote:

> When registering a new class, what are the consequences of setting
> zend_class_entry.create_object = NULL? INIT_CLASS_ENTRY() defaults it to
> NULL, but the tutorial I'm looking at sets it to the address of a function immediately afterwards.

> My concern is that setting this allows the engine to call a
> constructor-like-function behind my back. I'd rather handle such things
> while handling calls to new(). Is that possible? Is it even a good idea?

> The tutorial code provides a function for zend_class_entry.create_object
> that returns a populated zend_object_value. Presumably that's a useful
> thing to do, and if I don't have a function there I would need to find
> some other means of supplying the zend_object_value to the engine. Can I do that in a new() handler? How?




Best regards,
 Marcus