woocommerce get attribute terms

Question

In Woocommerce you can add global product attributes and terms. So for instance:

Size (attribute) small  (term) medium (term) large  (term) 

This is product independent. You can then select from the pre defined attributes on a product.

I need to get all of the terms in an attribute with php. So select the attribute required, eg size, and then return an array including [small,medium,large].

Seems simple enough but I can't find any help on doing this.

Answer 1

Slightly confusing, especially when looking through the WooCommerce Docs since there is absolutely no mention of getting a list of the terms/attributes.

The Attributes are saved as a custom taxonomy, and the terms are taxonomy terms. That means you can use native Wordpress functions: Wordpress get_terms() Function Reference

By clicking on an attribute in WooCommerce, you can look in the URL and you can see they are all prepended with 'pa_'

This is likely what you need:

$terms = get_terms("pa_size"); foreach ( $terms as $term ) { echo "<option>" . $term->name . "</option>"; } 

Answer 2

I wanted to be able to get all the different attributes from the backend that were set, and get them in an array for me to work with, I took some code from the class-wc-admin-attributes.php file and modified it for my needs:

<?php  $attribute_taxonomies = wc_get_attribute_taxonomies(); $taxonomy_terms = array();  if ($attribute_taxonomies) :     foreach ($attribute_taxonomies as $tax) :         if (taxonomy_exists(wc_attribute_taxonomy_name($tax->attribute_name))) :             $taxonomy_terms[$tax->attribute_name] = get_terms(wc_attribute_taxonomy_name($tax->attribute_name), 'orderby=name&hide_empty=0');         endif;     endforeach; endif;  var_dump($taxonomy_terms);  exit; 

This will loop through all the attribute taxonomies, retrieve the terms for each, leaving you with an array of term objects to work with for each taxonomy.