What special field codes does FormNut support?

Formut allows you to set form fields as required simply by adding a prefix to the field name.

req_ - marks a required field.
eml_ - marks a required field with e-mail address
ul_ - marks a required field with an URL address

For example, this is HTML code for an optional field:

<input type="text" name="Name:" size="30">

And this a required one:

<input type="text" name="req_Name:" size="30">

To capture IP address of the person submitting your form you may also add this code to the form:

<input type="text" name="FORMNUT_IP" value="1">