Wordpress get taxonomy name with slug

Question

How can I get a taxonomy id or name with only the taxonomy slug ?

I guess I'm looking for the equivalent of get_term_by() but for taxonomies.

Edit : I must specify that I'm trying to get the tax ID of a WooCommerce product attribute.

Thanks

Answer 1

WordPress does provide a function to get the taxonomy information from its slug.

$taxonomy_details = get_taxonomy( $slug );

This will return the taxonomy details as an object, which includes the various labels for the taxonomy. For example here's the returned object when called for the standard Category taxonomy, e.g. get_taxonomy( 'category' );

stdClass Object
(
    [labels] => stdClass Object
        (
            [name] => Categories
            [singular_name] => Category
            [search_items] => Search Categories
            [popular_items] => 
            [all_items] => All Categories
            [parent_item] => Parent Category
            [parent_item_colon] => Parent Category:
            [edit_item] => Edit Category
            [view_item] => View Category
            [update_item] => Update Category
            [add_new_item] => Add New Category
            [new_item_name] => New Category Name
            [separate_items_with_commas] => 
            [add_or_remove_items] => 
            [choose_from_most_used] => 
            [not_found] => No categories found.
            [menu_name] => Categories
            [name_admin_bar] => category
        )

    [description] => 
    [public] => 1
    [hierarchical] => 1
    [show_ui] => 1
    [show_in_menu] => 1
    [show_in_nav_menus] => 1
    [show_tagcloud] => 1
    [show_in_quick_edit] => 1
    [show_admin_column] => 1
    [meta_box_cb] => post_categories_meta_box
    [rewrite] => Array
        (
            [hierarchical] => 1
            [slug] => category
            [with_front] => 1
            [ep_mask] => 512
        )

    [query_var] => category_name
    [update_count_callback] => 
    [_builtin] => 1
    [cap] => stdClass Object
        (
            [manage_terms] => manage_categories
            [edit_terms] => manage_categories
            [delete_terms] => manage_categories
            [assign_terms] => edit_posts
        )

    [name] => category
    [object_type] => Array
        (
            [0] => post
        )

    [label] => Categories
)

Source: https://codex.wordpress.org/Function_Reference/get_taxonomy