Is Ajax a faster program code than PHP?”
AJAX and PHP are not the same at all and really can’t be compared. PHP is a server-side scripting language, meaning that it is a script that is executed on the server computer before the information is sent to your web browser. For instance when you fill out a form on a web site, that information is sent to the server. If it sends it to a PHP script then that script is executed on the server and something is done with that form data, such as adding it to a database, emailing it to someone, etc. AJAX is a term that is used broadly to refer to the combination of Javascript and XML. Javascript is a scripting language that is executed in your browser. For instance when you click to add a picture or a link in an answer on Askville, the little window that pops up that greys out the rest of the page is partly Javascript. AJAX also allows only a small portion of a page to be updated without reloading the entire page. An example of this is when you click to rate an answer, and the little rating
