public function post_importer_compatibility() {
		global $wpdb;

		if ( empty( $_POST['import_id'] ) || ! class_exists( 'WXR_Parser' ) ) { // PHPCS: input var ok, CSRF ok.
			return;
		}

		$id          = absint( $_POST['import_id'] ); // PHPCS: input var ok.
		$file        = get_attached_file( $id );
		$parser      = new WXR_Parser();
		$import_data = $parser->parse( $file );

		if ( isset( $import_data['posts'] ) && ! empty( $import_data['posts'] ) ) {
			foreach ( $import_data['posts'] as $post ) {
				if ( 'product' === $post['post_type'] && ! empty( $post['terms'] ) ) {
					foreach ( $post['terms'] as $term ) {
						if ( strstr( $term['domain'], 'pa_' ) ) {
							if ( ! taxonomy_exists( $term['domain'] ) ) {
								$attribute_name = wc_attribute_taxonomy_slug( $term['domain'] );

								// Create the taxonomy.
								if ( ! in_array( $attribute_name, wc_get_attribute_taxonomies(), true ) ) {
									wc_create_attribute(
										array(
											'name'         => $attribute_name,
											'slug'         => $attribute_name,
											'type'         => 'select',
											'order_by'     => 'menu_order',
											'has_archives' => false,
										)
									);
								}

								// Register the taxonomy now so that the import works!
								register_taxonomy(
									$term['domain'],
									apply_filters( 'woocommerce_taxonomy_objects_' . $term['domain'], array( 'product' ) ),
									apply_filters(
										'woocommerce_taxonomy_args_' . $term['domain'],
										array(
											'hierarchical' => true,
											'show_ui'      => false,
											'query_var'    => true,
											'rewrite'      => false,
										)
									)
								);
							}
						}
					}
				}
			}
		}
	}