Filtering payment options based on custom checkout field value (radio button)

Here are some clues:
1) https://stackoverflow.com/questions/53565775/show-hide-payment-gateways-based-on-checkout-fields-in-woocommerce
2) https://stackoverflow.com/questions/55680048/hide-cod-payment-based-on-chosen-select-field-options-in-woocommerce-checkout (instead of ‘select’ use ‘radio’)
Any insight would be appreciated with a 5 star review.

• This reply was modified 3 years, 6 months ago by nejcox.
• This reply was modified 3 years, 6 months ago by nejcox.

This worked for me, using clue under URL #2, but for “select” field only. Didn’t manage to integrate it with “radio” field. ??

3) https://stackoverflow.com/questions/48305763/hide-shipping-method-based-on-the-radio-button-in-woocommerce-checkout-page

This also looks promising, to make radio buttons instead of listings work.

You can try to add the below code in your theme’s functions.php file.

function th37t_display_conditional_payment_gateways($_available_gateways){
	$field_value = th34y_get_posted_value('your_field_name');
	
	if(is_array($_available_gateways) && $field_value === 'your_field_value'){
	   unset($_available_gateways['direct-debit']);
	   unset($_available_gateways['cheque']);
	}
	return $_available_gateways;
} 
add_filter('woocommerce_available_payment_gateways', 'th37t_display_conditional_payment_gateways');

function th34y_get_posted_value($key){
	$value = isset($_POST[$key]) ? stripslashes($_POST[$key]) : '';

	if(!$value){
		$post_data = isset($_POST['post_data']) ? $_POST['post_data'] : '';

		if($post_data){
			parse_str($post_data, $post_data_arr);
			$value = isset($post_data_arr[$key]) ? stripslashes($post_data_arr[$key]) : '';
		}
	}

	return $value;
}

Please note that you need to replace your_field_name and your_field_value with the field and value that you have provided on your site.

Also, please add the class update_totals_on_change for the field.

We hope this will help.

Thank you!