Create a Custom Taxonomy

In WordPress, a taxonomy is a way to categorize and group content (posts, pages, custom post types) based on shared characteristics or relationships. Taxonomies provide a mechanism for organizing and structuring content, making it easier for users to navigate and find related information on your website.

Creating Your Taxonomy

There are only two pieces of information you need to create a taxonomy, a tag name, and a display name.

Create a file at /app/Taxonomy/MyTaxonomy.php and add the following content.

<?php

namespace App\Taxonomy;

use Dragon\Posts\Taxonomy;

class MyTaxonomy extends Taxonomy {
    protected static string $tag = "my-tax";
    protected static string $name = "My Tax";
}

No, you're not paying your taxes with this class, but instead categorizing... posts? Yep. Taxonomies categorize posts in various ways. (WordPress Categories are a type of taxonomy, for instance.)

Making the taxonomy show in wp-admin

Let's add our taxonomy to the config/taxonomies.php file. Paste this sample code into the file, and then view the admin area to see your new taxonomy.

<?php

use App\Taxonomy\MyTaxonomy;

return [
    'tax' => [
        MyTaxonomy::class,
    ],
];