Sets the value of an HTTP header.
You can’t use this function to change the
content-length headers. The value of
host is always set to the domain of the URL that the request was sent to. The value of
content-length is always set to the length of the content in the request.
|Required. The name of the header to set.
|Required. The value to set for the header.
This example sets the
From address in the HTTP header.