[wp-hackers] Best Way of Excluding Categories from
wp_list_categories
Aaron Harun
admin at anthologyoi.com
Tue Mar 11 04:32:03 GMT 2008
In one of my old plugins I had to do this. You have to hook into the
get_terms hook. I used the following code. (The code was from 2.1 and
I updated it to 2.3 from memory so it may not be perfect.)
add_filter('get_categories', 'filter_categories');
function filter_categories ($input_categories,$type)
global $good_cats;
if($type == 'category'){
return $input_categories;
}
$filtered_results = array();
foreach($input_categories as $result){
if(in_array($result->term_id,$good_cats,true) && $result->term_id !='' ){
array_push($filtered_results, $result);
}
}
return $filtered_results;
}
$good_cats is an array of category ids that you DO want. You can
reverse the check to check for something not in the array.
On 3/11/08, Matt <speedboxer at gmail.com> wrote:
> I'm wondering what the best way (or anyway, really) of excluding categories
> (by ID) from wp_list_categories (from a plugin).
>
> It's probably something simple I'm missing. :P
>
> Thanks,
>
>
> --
> Matt (speedboxer at gmail.com)
> http://mattsblog.ca/
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