Load the content of each navigation bar item without reloading the whole page

PHP
1

I would like to use the include_once(“”) function to minimize the content of the pages. But when the navigation items are pressed, I want the content of the page to navigate to the corresponding link which the link is suppose to navigate to. Instead or reloading the whole page, only the content is reloaded.Thanks…

2

Look into jquery and ajax

3

Thanks