I need some clarifications concerning submitting web form details to paypal. I know the form basics, whereby use the actions and post method, as well as to create to the editors
<input type="text" name="..." value="..">
but however I've seen in some codes they used <input type="hidden"...>
This is the part which has confused me, when to use the hidden and if for example I have editors in my form, which currently are
<input type="text" name="first name">
<input type="text" name="last name">
how to use the input type= hidden in this one??