Got it, let's fix this properly. The problem with your previous approach is that it only targeted related products—we need a set of filters that cover every frontend location where product names show up, including product archives, cart, checkout, and Ninja Tables.

Here's a comprehensive code snippet you can add to your theme's functions.php file (or a custom plugin for better safety):

// Filter core product name (affects most places pulling the product's name directly)
add_filter( 'woocommerce_product_get_name', 'hide_domain_in_product_title', 10, 2 );
add_filter( 'woocommerce_product_variation_get_name', 'hide_domain_in_product_title', 10, 2 );

// Filter cart item names (covers cart page and mini-cart widgets)
add_filter( 'woocommerce_cart_item_name', 'hide_domain_in_cart_item_title', 10, 3 );

// Filter order item names (covers checkout page, order confirmation, and order details)
add_filter( 'woocommerce_order_item_name', 'hide_domain_in_order_item_title', 10, 2 );

// Filter general post title (covers product archives, single product pages, and plugins like Ninja Tables)
add_filter( 'the_title', 'hide_domain_in_general_title', 10, 2 );

/**
 * Replace domain.com with d****n.com in product titles
 */
function hide_domain_in_product_title( $name, $product ) {
    return preg_replace( '/domain\.com/', 'd****n.com', $name );
}

/**
 * Modify cart item title to hide domain
 */
function hide_domain_in_cart_item_title( $title, $cart_item, $cart_item_key ) {
    return preg_replace( '/domain\.com/', 'd****n.com', $title );
}

/**
 * Modify order item title to hide domain
 */
function hide_domain_in_order_item_title( $title, $item ) {
    return preg_replace( '/domain\.com/', 'd****n.com', $title );
}

/**
 * Modify general post title (only for WooCommerce products) to hide domain
 */
function hide_domain_in_general_title( $title, $post_id ) {
    // Apply only to product post types
    if ( get_post_type( $post_id ) === 'product' || get_post_type( $post_id ) === 'product_variation' ) {
        return preg_replace( '/domain\.com/', 'd****n.com', $title );
    }
    return $title;
}

How This Works: #

• woocommerce_product_get_name & woocommerce_product_variation_get_name: These target the core product name property, so any function calling $product->get_name() (used by most WooCommerce components and third-party plugins) will return the modified title.
• woocommerce_cart_item_name: Specifically handles titles displayed in the cart and mini-cart widgets, ensuring consistency there.
• woocommerce_order_item_name: Makes sure the hidden domain appears on checkout pages, order confirmations, and saved order details.
• the_title: Covers standard WordPress title displays, including product archive pages and plugins like Ninja Tables that rely on WordPress's native title hook.

If Ninja Tables Still Doesn't Update: #

If Ninja Tables pulls product titles via a custom method (like directly accessing post_title without using hooks), check if the plugin offers its own filter for table content. But in most cases, the woocommerce_product_get_name or the_title filters should already catch it, since Ninja Tables typically uses standard WordPress/WooCommerce functions to retrieve product data.

Be sure to test all key pages after adding this code—product lists, cart, checkout, and your Ninja Tables—to confirm the domain is replaced everywhere.

内容的提问来源于stack exchange，提问作者Tdotcom