Introduction At the client browser, what Ajax does is that it calls a file at the server. This file at the server has to be an executable file. The name of this file is part of the URL used by the Ajax at the client. The function of this file is to look for the information requested from the server and send back to the client. The aim of this article is to show you how to send back the required text to the client browser. I use the Perl and PHP languages for illustration. You need basic... Sign in to see full entry.