In this example, I will demonstrate how to hide the “billing phone” if “billing company” is empty or no information is entered. Of course, you also have to disable the mandatory attribute for the billing phone from the Customizer settings, otherwise checkout validation will fail. You can readapt this snippet to any other checkout field combo – just identify the input IDs and change jQuery accordingly. Enjoy!
PHP Snippet: Toggle a Checkout Field Based on Whether Another Field is Empty
Please let me know in the comments if everything went 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.
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!
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.