How to get all WooCommerce product attributes taxonomies slugs and names

Question

In WooCommerce I am trying to add a custom field to all of product attributes as a plugin…

For the moment in the code below, I am able to add a custom field to one taxonomy:

function pippin_taxonomy_add_new_meta_field() {
// this will add the custom meta field to the add new term page
?>
<div class="form-field">
    <label for="term_meta[custom_term_meta]"><?php _e( 'Example meta field', 'pippin' ); ?></label>
    <input type="text" name="term_meta[custom_term_meta]" id="term_meta[custom_term_meta]" value="">
    <p class="description"><?php _e( 'Enter a value for this field','pippin' ); ?></p>
</div>
    <?php
}

add_action( 'pa_flavor_add_form_fields', 'pippin_taxonomy_add_new_meta_field', 10, 2 );

// Edit term page
function pippin_taxonomy_edit_meta_field($term) {

// put the term ID into a variable
$t_id = $term->term_id;

// retrieve the existing value(s) for this meta field. This returns an array
$term_meta = get_option( "taxonomy_$t_id" ); ?>
<tr class="form-field">
    <th scope="row" valign="top"><label for="term_meta[custom_term_meta]"><?php _e( 'Example meta field', 'pippin' ); ?></label></th>
    <td>
        <input type="text" name="term_meta[custom_term_meta]" id="term_meta[custom_term_meta]" value="<?php echo esc_attr( $term_meta['custom_term_meta'] ) ? esc_attr( $term_meta['custom_term_meta'] ) : ''; ?>">
        <p class="description"><?php _e( 'Enter a value for this field','pippin' ); ?></p>
    </td>
</tr>
<?php
}
add_action( 'pa_flavor_edit_form_fields', 'pippin_taxonomy_edit_meta_field', 10, 2 );

How to get all WooCommerce product attributes taxonomies slugs (and names)?

This way I could make those custom fields dynamically for all existing product attributes.

Answer 1

You can get product attribute taxonomy slugs (and taxonomy names ) by using:

1. Before WooCommerce version 3.6 with wc_get_attribute_taxonomies() dedicated function:

    // Get an array of product attribute taxonomies slugs $attributes_tax_slugs = array_keys( wp_list_pluck( wc_get_attribute_taxonomies(), 'attribute_label', 'attribute_name' ) ); // Get an array of product attribute taxonomies names (starting with "pa_") $attributes_tax_names = array_filter( array_map( 'wc_attribute_taxonomy_name', $attribute_taxonomies ));

2. Since WooCommerce version 3.6+ with wc_get_attribute_taxonomy_labels() dedicated function:

    // Get an array of product attribute taxonomies slugs $attributes_tax_slugs = array_keys( wc_get_attribute_taxonomy_labels() ); // Get an array of product attribute taxonomies names (starting with "pa_") $attributes_tax_names = array_filter( array_map( 'wc_attribute_taxonomy_name', $attribute_taxonomies ));

Official documentation:

• All WooCommerce related product attribute functions: wc-attribute-functions.php core file
• WordPress: wp_list_pluck() function
• PHP functions: array_keys() , array_filter() and array_map()