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Date: Fri, 21 May 2004 18:23:07 +0200
Reply-To: Marcus Boerger <helly@php.net>
Message-ID: <110719642.20040521182307@marcus-boerger.de>
To: Bert Slagter <bert@procurios.nl>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] Extending internal classes like mysqli
From: helly@php.net (Marcus Boerger)

Hello Bert,

some of the internal classas cannot be extended and unfortunatley they are
not marked as 'final' right now. For you that means you need to extend it
by a proxy class that reimplements the original class protocol and uses
the original class as a property.

Friday, May 21, 2004, 2:52:08 PM, you wrote:

> Good afternoon!

> Could anyone explain what we're supposed to do with internal classes 
> like the mysqli class.

> In an article on Zend.com 
> (http://www.zend.com/php5/articles/php5-mysqli.php) the fact that the 
> object oriented interface can be extended is brought as a major feature. 
> But it seems that it's impossible to extend the mysqli class, see my bug 
> at http://bugs.php.net/bug.php?id=28430.

> What I want is this. I need some custom logging for my database layer. 
> So I want to extend the mysqli class and overwrite one or two methods 
> and add some custom methods.

> Shouldn't I be able to just do:

> class foo extends mysqli
> {
> }

> $foo = new foo();

> Right now this doesn't work - the variable $foo->thread_id isn't 
> available for example.

> Is this intended behaviour?

> Bert Slagter




-- 
Best regards,
 Marcus                            mailto:helly@php.net