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Taxonomy terms not showing up in select field (get_field_object)

  • I would really appreciate any help on my issue, I am not a pro 😉

    I created a taxonomy field for a custom post types taxonomy and simply want to display all options with a select dropdown within a custom form I have created (not with acf or a plugin). I used the code I found in the docs here. It works fine with a regular select field, but it is displaying an empty dropdown using the taxonomies field key:

    $field_key = “field_5820f0c21ed72″;
    $field = get_field_object($field_key);

    if( $field )
    echo ‘<select name=”‘ . $field[‘key’] . ‘”>’;
    foreach( $field[‘choices’] as $k => $v )
    echo ‘<option value=”‘ . $k . ‘”>’ . $v . ‘</option>’;
    echo ‘</select>’;


    Any suggestions? Thanks a lot

  • The taxonomy field does not have an array of ‘choices’, like the select field does, because the choices are loaded from the database, they are not typed out in the ACF configuration.

    You should use a database query for this:

    global $wpdb;
    $customTaxonomy = 'category';
    $sql = "
    	FROM $wpdb->terms te
    	LEFT JOIN $wpdb->term_taxonomy tt
    	ON tt.term_id = te.term_id
    	WHERE tt.taxonomy = '$customTaxonomy'
    $taxonomies = $wpdb->get_results( $sql, ARRAY_A );
    if ( $taxonomies ) {
    	echo '<select name="somename">';
    	foreach( $taxonomies as $item ) {
    		echo '<option value="' . $item['term_id'] . '">' . esc_html( $item['name'] ) . '</option>';
    	echo '</select>';
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