WooCommerce: Dynamically Hide / Show Checkout Field

We already saw a lot of examples e.g. hiding checkout fields if a product is virtual or hiding checkout fields if a checkbox is manually checked… but this time I want to hide a field dynamically – automatically – based on whether another checkout field is empty or no value is entered in it.

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 IDs and change jQuery accordingly. Enjoy!

In this example, we will see how to hide and keep hidden the Billing Phone entire field unless some content is entered inside Company name field

PHP Snippet: Conditionally Hide / Show a Checkout Field Based on Whether Another Field is Empty

/**
 * @snippet       Hide/Show Field @ WooCommerce Checkout
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.7
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_action( 'wp_footer', 'bbloomer_conditionally_hide_show_checkout_field', 9999 );

function bbloomer_conditionally_hide_show_checkout_field() {
	if ( ! is_checkout() ) return;
	?>
		<script type="text/javascript">
			jQuery('#billing_company').keyup(function() {
				if (jQuery(this).val().length == 0) {
					jQuery('#billing_phone_test_field').hide();
				} else {
					jQuery('#billing_phone_test_field').show();
				}
			}).keyup();
		</script>
	<?php
}

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. You can start learning how to customize WooCommerce without unnecessary plugins. Watch me code and learn by example!

  • 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.

Questions? Feedback? Support? Leave your Comment Now!
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If you are writing code, please wrap it between: [php]code_here[/php]. Failure to complying with this (as well as going off topic) will result in comment deletion. You should expect a reply in about a week - this is a popular blog but I need to get paid work done first. Please consider joining #BloomerArmada to ask me 1-to-1 WooCommerce questions. Thank you :)

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