AJAX allows frontend JavaScript to communicate with backend PHP without reloading the page.
Using AJAX with PHP helps create fast and dynamic web applications.
PHP runs on the server and processes requests sent by the browser.
AJAX sends data to PHP and waits for the response.
The browser sends the request in the background using AJAX.
PHP receives the request, executes logic, and returns output.
AJAX displays the PHP response on the web page without refreshing.
This communication forms the foundation of all AJAX-based backend applications.
After completing this lesson, you understand how frontend and backend communicate using AJAX and PHP.