I have a category that is used for internal purposes. It's "Key Articles" (slug: key-articles; ID: 47).
I don't want this showing up anywhere in the site that the category taxonomy is displayed (in the post meta, in posts by category widget, etc.).
I've attempted the solution found here, using the code below, but it oddly removed the the very first category on each post, not the one I have specified. I tried using the slug, ID, and category name. Same result each time.
add_filter('get_the_terms', 'hide_categories_terms', 10, 3);
function hide_categories_terms($terms, $post_id, $taxonomy){
// get term to exclude by name, by id or maybe by slug
$exclude = get_term_by('slug', 'key-articles', 'category', ARRAY_A);
if (!is_admin()) {
foreach($terms as $key => $term){
if($term->taxonomy == "category"){
if(in_array($key, $exclude)) unset($terms[$key]);
}
}
}
return $terms;
}
I found that solution here, where I also tried other solutions offered there, such as this one. No luck.
I am thinking newer versions of WordPress might have changed such that these methods are now useless.
What's the best way to go about it?