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.
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>";
}