getting the values passed via payment_fields()

Hello,

I have a very simple question I have not managed to answer myself, although I’ve gone through quite a few sites.

I am trying to develop a payment gateway for woocommerce (v 2.3.7) and I’m having trouble retrieving the contents of custom fields.

For example I have something like:

public function payment_fields () {

//as I understand I am not expected to enter anything else (e.g. <form>, submit, etc)

<input type = "radio" name = "z" value = "true" />

}

The field appears on the checkout page as expected but that seems to be about it. The $_POST that reaches process_payment() does not contain any trace of my field.

Should I use a different technique for adding the field or is the problem somewhere else?

I appreciate your help.

https://wordpress.org/plugins/woocommerce/