WooCommerce product tagging system

The WooCommerce product tagging system allows you to categorize and organize your products using tags. Tags are keywords or terms that describe the characteristics or attributes of a product. They help customers find products based on specific criteria and improve the overall browsing experience on your WooCommerce store.

To add tags to your WooCommerce products, you can use the wp_set_post_terms() function. This function allows you to set the tags for a specific product by providing the product ID and an array of tag names.

Here’s an example code snippet that demonstrates how to add tags to a product:

$product_id = 123; // Replace with your product ID
$tags = array( 'tag1', 'tag2', 'tag3' ); // Replace with your desired tags

wp_set_post_terms( $product_id, $tags, 'product_tag' );

In the above example, we set the product ID to 123 and define an array of tags (tag1, tag2, tag3). We then use the wp_set_post_terms() function to assign these tags to the product. The third parameter 'product_tag' specifies the taxonomy for product tags.

You can customize this code snippet by replacing the $product_id variable with the actual ID of your product and modifying the $tags array to include your desired tags.

By using this code snippet, you can easily add tags to your WooCommerce products programmatically. This can be useful when importing products in bulk or when you want to automate the process of assigning tags to products based on certain criteria.

Examples

Example 1: Adding Custom Product Tags in WooCommerce

This use case demonstrates how to add custom product tags in WooCommerce using the woocommerce_product_tag taxonomy.

function wpsnippets_add_custom_product_tags() {
    register_taxonomy(
        'product_tag',
        'product',
        array(
            'label' => __( 'Custom Tags', 'text-domain' ),
            'rewrite' => array( 'slug' => 'custom-tags' ),
            'hierarchical' => true,
        )
    );
}
add_action( 'init', 'wpsnippets_add_custom_product_tags' );

In this code example, we use the register_taxonomy() function to register a new taxonomy called product_tag for the product post type. We specify the label, slug, and hierarchical nature of the taxonomy. This allows you to create and assign custom tags to your WooCommerce products.

Example 2: Displaying Custom Product Tags on Single Product Page

This use case demonstrates how to display custom product tags on the single product page in WooCommerce.

function wpsnippets_display_custom_product_tags() {
    $product_tags = get_the_terms( get_the_ID(), 'product_tag' );

    if ( $product_tags && ! is_wp_error( $product_tags ) ) {
        echo '<ul class="custom-product-tags">';
        foreach ( $product_tags as $tag ) {
            echo '<li><a href="' . esc_url( get_term_link( $tag ) ) . '">' . esc_html( $tag->name ) . '</a></li>';
        }
        echo '</ul>';
    }
}
add_action( 'woocommerce_single_product_summary', 'wpsnippets_display_custom_product_tags', 25 );

In this code example, we use the get_the_terms() function to retrieve the custom product tags assigned to the current product. We then loop through the tags and display them as a list of links. The tags are wrapped in an unordered list with a custom CSS class for styling purposes.

Example 3: Filtering Products by Custom Product Tags

This use case demonstrates how to filter products by custom product tags in WooCommerce.

function wpsnippets_filter_products_by_custom_tags( $query ) {
    if ( ! is_admin() && $query->is_main_query() && is_tax( 'product_tag' ) ) {
        $query->set( 'post_type', 'product' );
    }
}
add_action( 'pre_get_posts', 'wpsnippets_filter_products_by_custom_tags' );

In this code example, we use the pre_get_posts action hook to modify the main query when viewing a custom product tag archive page. We check if the query is not in the admin area, is the main query, and is for the product_tag taxonomy. If these conditions are met, we set the post_type parameter to product, ensuring that only products are displayed on the custom tag archive page.