Need assistance creating an iRule to modify a URI

This will change the URI and send it to server:

when HTTP_REQUEST {
if { [HTTP::uri] eq "/TestProcess.php" } {
HTTP::uri /example[HTTP::uri]
}
}

This will send a redirect to the client asking them to request the resource again:

when HTTP_REQUEST {
if { [HTTP::uri] eq "/TestProcess.php" } {
HTTP::respond 301 Location "http://[HTTP::host]example[HTTP::uri]"
}
}