[wp-hackers] add_action arrays?

[Thomas Belknap]

Jacob,

Wow. Ok, thanks for that?

I see you've updated the docs, thanks. I was unfamiliar with the "callable"
type until this point; I'm glad people on this list can help when we need
it, even if it does seem occasionally redundant to provide such
explanations.

Thanks to everyone who responded.

Tom Belknap
http://holisticnetworking.net

On Wed, Sep 23, 2009 at 8:09 PM, Jacob Santos <wordpress at santosj.name>wrote:

> Thomas,
>
> You are not alone and others have pointed out the obvious omission of
> documentation about the aforementioned array callback format in WordPress
> inline documentation. This is, as I have pointed out before, because PHP
> itselfs has documentation on this and a check for callable "type"[1] should
> have lead you to many great resources on this information. Meh, I believe a
> little attempt at explaining this is also in WordPress, but where I'm
> unsure, and I could be mistaken.
>
> As others have provided said information in this thread, I would assume
> this matter to be closed. However, since this is the second time that I'm
> aware of someone having a problem with lack of PHP information, I think
> providing a link to the callable "type"[1] documentation should be provided
> in WordPress to provide an opportunity for fellow WordPress developers, as
> well as plugin and theme developers to learn.
>
> I was also unaware that this was a general PHP help forum. Well, to be
> fair, if said question was posted on PHP help forums, the response might
> have been, "RTFM" or "Ask WordPress" along with some disparaging remark
> about your mother or your lack of certain skills, but with a 'z' instead of
> a 's' and I will assume in some ironic attempt to be clever[2].
>
> I'm not exactly sure how one would fit in pointers to the callable type, I
> believe it is somewhere already in the plugin API inline documentation, but
> there is a lot of wording, much of which is relevant to WordPress
> specifically. I believe it might have been put in arbitrary at one point
> once it was realized that one might not have any idea what the callable type
> actually was and couldn't be concerned to search on Google or PHP.net, but
> then it was realized that you must be this tall to ride and those that
> aren't are probably going suffer from other, more pressing problems.
>
> Jacob Santos
>
> [1] While PHP suggests that it isn't an actual native type, not like it is
> in JavaScript, it still has some "magic" to it like a language type. Well,
> we're not speaking of PHP5.3 which makes it closer to one, but still not
> native.
>
> [2] We've all done this, right, at some point? Good times.
>
>
> On Wed, 23 Sep 2009 08:00:45 -0400
> Thomas Belknap <dragonfly at dragonflyeye.net> wrote:
>
> > I've seen a few plugins and bits of code internal to WordPress use the
> > following convention:
> >
> > add_action('pre_get_posts', array(&$this, 'postFilter'));
> >
> > But this usage is not documented anywhere? I attempted to use the same
> > convention and got the following error:
> >
> > call_user_func_array() [function.call-user-func-array]: First argument
> > is expected to be a valid callback, 'Array' was given in blah, blah,
> > blah...
> >
> > I was looking at the code for add_action and add_filter, and they
> > definitely seem to not take arrays into account as far as I can tell.
> > Is this a deprecated way of doing things? Is there some other way to
> > hook an object method into an action or filter?
> >
> > Thanks!
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
>