WooCommerce: Get Product IDs (All, by Tag, by Category)

When you work with WooCommerce PHP snippets, you often need to “get” stuff off your WordPress database in order to make some calculations and return the result on the screen. And if there is something I often google is “How do I get all my store’s product IDs?“.

Thankfully the get_posts WordPress function gives us the answer. In the next weeks we’ll also see how we can get other information, such as all SKUs, all product categories, etc.

So, here’s the quick snippet to return all product IDs on the Cart page (“woocommerce_before_cart” hook) – you can change that if you want to use them somewhere else. Enjoy 🙂

WooCommerce: get all product IDs

PHP Snippet 1: Get All WooCommerce Product IDs

/**
 * @snippet       Get All WooCommerce Product IDs
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 5
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_action( 'woocommerce_before_cart', 'bbloomer_echo_product_ids' );

function bbloomer_echo_product_ids() {
   $all_ids = get_posts( array(
        'post_type' => 'product',
        'numberposts' => -1,
        'post_status' => 'publish',
        'fields' => 'ids',
   ) );
   foreach ( $all_ids as $id ) {
        echo $id;
   }
}

PHP Snippet 2: Get All WooCommerce Product IDs by Product Tag

/**
 * @snippet       Get WooCommerce Product IDs by Tag
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 5
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_action( 'woocommerce_before_cart', 'bbloomer_echo_product_ids_belong_to_tag' );

function bbloomer_echo_product_ids_belong_to_tag() {
   $all_ids = get_posts( array(
      'post_type' => 'product',
      'numberposts' => -1,
      'post_status' => 'publish',
      'fields' => 'ids',
      'tax_query' => array(
         array(
            'taxonomy' => 'product_tag',
            'field' => 'slug',
            'terms' => 'your_product_tag',
            'operator' => 'IN',
         )
      ),
   ) );
   foreach ( $all_ids as $id ) {
      echo $id;
   }
}

PHP Snippet 3: Get All WooCommerce Product IDs by Product Category

/**
 * @snippet       Get WooCommerce Product IDs by Category
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 5
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_action( 'woocommerce_before_cart', 'bbloomer_echo_product_ids_belong_to_cat' );

function bbloomer_echo_product_ids_belong_to_cat() {
   $all_ids = get_posts( array(
      'post_type' => 'product',
      'numberposts' => -1,
      'post_status' => 'publish',
      'fields' => 'ids',
      'tax_query' => array(
         array(
            'taxonomy' => 'product_cat',
            'field' => 'slug',
            'terms' => 'your_product_cat',
            'operator' => 'IN',
         )
      ),
   ) );
   foreach ( $all_ids as $id ) {
      echo $id;
   }
}

Where to add this snippet?

You can place PHP snippets at the bottom of your child theme functions.php file (delete "?>" if you have it there). CSS, on the other hand, goes in your child theme style.css file. Make sure you know what you are doing when editing such files - if you need more guidance, please take a look at my free video tutorial "Where to Place WooCommerce Customization?"

Does this snippet (still) work?

Please let me know in the comments if everything worked as expected. I would be happy to revise the snippet if you report otherwise (please provide screenshots). I have tested this code with Storefront theme, the WooCommerce version listed above and a WordPress-friendly hosting on PHP 7.3.

If you think this code saved you time & money, feel free to join 14,000+ WooCommerce Weekly subscribers for blog post updates or 250+ Business Bloomer supporters for 365 days of WooCommerce benefits. Thank you in advance :)

Need Help with WooCommerce?

Check out these free video tutorials. You can learn how to customize WooCommerce without unnecessary plugins, how to properly configure the WooCommerce plugin settings and even how to master WooCommerce troubleshooting in case of a bug!

Rodolfo Melogli

Business Bloomer Founder

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as an independent WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza.

4 thoughts on “WooCommerce: Get Product IDs (All, by Tag, by Category)

  1. Thanks for this, it works well. Is it possible to include a “sort by” dropdown above the list so that a viewer can sort by price or alphabetically.

    1. Hi Steve, thanks so much for your comment! Yes, this is definitely possible, but I’m afraid it’s custom work. If you’d like to get a quote, feel free to contact me here. Thanks a lot for your understanding!

  2. Hi!!!
    If I am on Shop page and I want to get the details of all products present on shop when I am using hook.How this can be done? In above examples you have explained how to get each products from query. But if I am using hook ‘ ‘woocommerce_before_shop_loop’ to modify data on page, how can I get all products of page?

    1. Hi Amit! You can use get_posts even inside a frontend snippet

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