Placeholders

(c) [werk01.de]

Generally the inspector in GoLive allows you to tune an object with static values - image width or form field presets. With a slightly new syntax, upon execution a PHP extension can use the user input rather than fixed values to work with.

Let's look at a field called 'To:' in the inspector:

A value in the inspector will always send the email to this address - here 'you@company.com'.
Furthermore the address can never be read by your visitor (nor a spam bot!) because it is executed and hidden on the server.
In case your form contains a field called 'destination' and the user has entered 'paul@world.org', then 'paul@world.org' is used in place of the 'To' field.
This is very useful for multiple, yet unknown recipients but take care, other can exploit this feature to send emails on your behalf.
Finally you can mix both methods. If you offer a popup/drop down menu called 'destination' in your form which lists all email 'initials' and the user has selected 'linda' from this popup, then 'linda@company.com' will receive this email.