In what situations would using JavaScript and AJAX requests be more appropriate than pure PHP for handling button clicks and function execution on a webpage?

JavaScript and AJAX requests would be more appropriate than pure PHP for handling button clicks and function execution on a webpage when you want to update specific parts of a webpage without reloading the entire page. This is useful for creating interactive and dynamic user interfaces. AJAX allows you to make asynchronous requests to the server, fetch data, and update the content on the page without disrupting the user experience.

// PHP code snippet that demonstrates how to handle AJAX requests

if(isset($_POST['button_click'])){
    // Perform some server-side processing here
    $response = "Button clicked successfully!";
    
    // Send the response back to the client
    echo $response;
    exit;
}