WooCommerce: Custom Related Products

WooCommerce picks related products on the Single Product Page based on product categories and/or product tags. Related products are very important to the shopping experience, and sometimes this is not enough – what if you want to automatically show certain products based on different criteria?

So, here’s a quick snippet to e.g. get related products with the same product title of the current one. A very strange example, but you can use this as reference in case you want to get products based on different criteria. The get_posts() function, in fact, can be customized to get products with a given stock, certain price range, same custom field value, search term, and so on.

In this example, I’m getting Related Products by search string = “simple”

PHP Snippet: Custom Related Products

/**
 * @snippet       Avoid Empty Cart Redirect @ WooCommerce Checkout
 * @how-to        Watch tutorial @ https://businessbloomer.com/?p=19055
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.6.4
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_filter( 'woocommerce_related_products', 'bbloomer_related_products_by_title', 9999, 3 ); 

function bbloomer_related_products_by_title( $related_posts, $product_id, $args ) {
	$product = wc_get_product( $product_id );
	$title = $product->get_name();
	$related_posts = get_posts( array(
		'post_type' => 'product',
		'post_status' => 'publish',
		'title' => $title,
		'fields' => 'ids',
		'posts_per_page' => -1,
		'exclude' => array( $product_id ),
	));
	return $related_posts;
}

Where to add this snippet?

You can place PHP snippets at the bottom of your child theme functions.php file (before "?>" if you have it). 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+.

If you think this code saved you time & money, please join other Business Bloomer supporters and avail of 365 days of WooCommerce benefits. Thank you in advance :)

Need Help with WooCommerce Customization?

Check out these free video tutorials!

  • how-to-edit-woocommerce-with-php-snippets
  • woocommerce-hooks-add_action-list-visual
  • woocommerce-customize-single-product-page-PHP

Rodolfo Melogli

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as a 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.

2 thoughts on “WooCommerce: Custom Related Products

  1. hello,

    The get_posts() function, in fact, can be customized to get products with a given stock, certain price range, same custom field value, search term, and so on.

    Thank you, but can you give another example ? Let’s say related products with the same price ?

    Your snippets are the best of the whole web ! thank you again !

    1. Hello there, 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!

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