PHP: Display a “loading” page while a php script is executing

Question

Here is what I\'ve got right now...

I have a web page that when accessed, it connects to surveygizmo.com via their open API, retreives a whole lot of data, and then

Answer 1

\r\n"; flush(); //output to the browser before the rest of the execution

     connect_surveygizmo(); //this is going to take while.

     echo "Finished!";

?>