I am trying to display custom taxonomy field’s names and descriptions for single products in a loop.
I’ve created custom product taxonomy
JavaScript
x
add_action( 'init', 'create_distinctions_nonhierarchical_taxonomy', 0 );
function create_distinctions_nonhierarchical_taxonomy() {
// Labels part for the GUI
$labels = array(
'name' => _x( 'Distinction', 'taxonomy general name' ),
'singular_name' => _x( 'Distinction', 'taxonomy singular name' ),
'search_items' => __( 'Search Distinction' ),
'popular_items' => __( 'Popular Distinction' ),
'all_items' => __( 'All Distinction' ),
'parent_item' => null,
'parent_item_colon' => null,
'edit_item' => __( 'Edit Distinction' ),
'update_item' => __( 'Update Distinction' ),
'add_new_item' => __( 'Add New Distinction' ),
'new_item_name' => __( 'New Distinction Name' ),
'separate_items_with_commas' => __( 'Separate distinctions with commas' ),
'add_or_remove_items' => __( 'Add or remove distinctions' ),
'choose_from_most_used' => __( 'Choose from the most used distinctions' ),
'menu_name' => __( 'Distinctions' ),
);
// Now register the non-hierarchical taxonomy like tag
register_taxonomy('distinctions',array('product'),array(
'hierarchical' => false,
'labels' => $labels,
'show_ui' => true,
'show_in_rest' => true,
'show_admin_column' => true,
'update_count_callback' => '_update_post_term_count',
'query_var' => true,
'rewrite' => array( 'slug' => 'distinctions' ),
));
}
next created sample tags: One, Two and assigned them to the Product (via ACF plugin)
I want them to be displayed on product page. I was trying to use this code:
JavaScript
<?php
add_action( 'woocommerce_product_meta_end', 'action_product_meta_end' );
function action_product_meta_end() {
global $post;
$terms = get_the_terms( $post->ID , 'distinctions' );
foreach ( $terms as $term ) {
?>
<ul>
<li>
<h5><?php echo $term->name; ?></h5>
<p><?php echo $term->description; ?></p>
</li>
</ul>
<?php
}}
?>
but there is an issue I cannot address:
Warning: foreach() argument must be of type array|object, bool given in
What am I doing wrong?
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Answer
Update (related to your comment)
You need to check that $terms
variable is not empty before in your last function and also that each term exists like:
JavaScript
add_action( 'woocommerce_product_meta_end', 'action_product_meta_end' );
function action_product_meta_end() {
global $post;
$taxonomy = 'distinction';
$terms = get_the_terms( $post->ID , $taxonomy );
if ( $terms && ! empty( $terms ) ) {
foreach ( $terms as $term ) {
if ( term_exists( $term, $taxonomy ) ) {
?>
<ul>
<li>
<h5><?php echo $term->name; ?></h5>
<p><?php echo $term->description; ?></p>
</li>
</ul>
<?php
}
}
}
}
This should solve the issue.
You If your otheer issue persist, you can also try to replace from my code:
JavaScript
if ( term_exists( $term, $taxonomy ) ) {
with:
JavaScript
if ( is_a( $term, 'WP_Term' ) ) {