WooCommerce: Dynamically Update Variable Product Attributes @ Single Product

If you’re familiar with WooCommerce variable products, variations are generated from product attribute terms (color: yellow & size: large for example). All possible attribute terms are displayed in the “Additional Information” tab of the single product page, so that the customer has an idea of all the possible product options.

However, as you can see from the screenshot below, this information is static i.e. does not change when you select a variation. It would be much more helpful if the attribute information changed from e.g. “Color: red – yellow – green” to the currently selected variation attribute term e.g. “Color: red“.

In today’s quick snippet, we’ll show just that: a combination of PHP and jQuery to make sure that “Additional Information” tab is always updated based on the selected variation. Enjoy!

On load, the Additional Information tab of a variable product shows all possible options (“attribute terms”). In this customization, we wish to dynamically update the terms based on the currently selected variation. For example, if “Blue, Large” is the selected variation, the Additional Information tab would change to just “Color: Blue” and “Size: Large”

PHP Snippet: Dynamically Update Additional Information Tab Attributes Based on Currently Selected Variation

/**
 * @snippet       Dynamic Attributes @ Single Product
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @testedwith    WooCommerce 6
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_action( 'woocommerce_before_add_to_cart_quantity', 'bbloomer_dynamic_atts_variation' );
 
function bbloomer_dynamic_atts_variation() {
	global $product;
	if ( ! $product->is_type( 'variable' ) ) return;
    wc_enqueue_js( " 
		$('input.variation_id').change(function(){
			if( $(this).val() && $(this).val() > 0  ) {	
				$('form.variations_form').find('.variations select').each( function( index, el ){
					var current_select_id = $(el).attr('id');
					var current_select_val = $(el).find('option:selected').text();
					$('.woocommerce-product-attributes-item--attribute_'+current_select_id+' td p').text(current_select_val);
				});
			} 
		});
	" );
}

And here’s a proof of what happens once a variation is selected:

As soon as I select the Red, Large variation, and Additional Information tab content dynamically updates itself!

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?

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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.

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If you are writing code, please wrap it between shortcodes: [php]code_here[/php]. Failure to complying with this (as well as going off topic, not writing in English, etc.) will result in comment deletion. You should expect a reply in about 2 weeks - this is a popular blog but I need to get paid work done first. Please consider joining BloomerArmada to get blog comment reply priority, ask me 1-to-1 WooCommerce questions and enjoy many more perks. Thank you :)

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