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ACF – Taxonomy Select List

  • I have a requirement to output taxonomies as a select list. This is acheived using the code below.

    There are a couple of tweaks I would like, if possible:

    1. Limit the output taxonomies by post type association. For example, only taxonomies used for products.
    2. Set the output to the style of “taxonomy_slug : Taxonomy Name” so the select list looks nice on the frontend.

    function pd_get_taxonomy_list( $field ) {
    $field['choices'] = array();
    $taxonomies = get_taxonomies();
    foreach ( $taxonomies as $taxonomy ) {
    $choices[$taxonomy] = $taxonomy;
    $field['choices'] = $choices;
    return $field;
    add_filter('acf/load_field/key=field_59da1b7571513', 'pd_get_taxonomy_list');
  • Hello @pixeldesignsuk

    Am I correct in thinking that you are in fact looking for “Terms” of a “Taxonomy” and not actually the “Taxonomies” of a CPT?

    If you are looking for “Taxonomy Terms” (as opposed to Taxonomies) which makes more sense if looking for the “slug”, then you could try this:

    $field['choices'] = array();
    $terms = get_terms( array(
      'taxonomy' => 'custom_taxonomy_name',
      'hide_empty' => false,
    if ( $terms ) {
      foreach ( $terms as $term ) {
        $choices[$term->slug] = $term->slug . ' : ' . $term->name;


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