What are some recommended client-side technologies to consider when using PHP for communication between clients?

When using PHP for communication between clients, it is recommended to consider using client-side technologies such as JavaScript and AJAX to create dynamic and interactive web applications. JavaScript can be used to manipulate the DOM and handle user interactions, while AJAX can be used to make asynchronous requests to the server without reloading the entire page.

<?php
// PHP code to handle AJAX request
if(isset($_POST['data'])){
    $data = $_POST['data'];
    
    // Process the data
    
    // Return response to client
    echo json_encode(['message' => 'Data processed successfully']);
}
?>