How can PHP be integrated with JavaScript to enhance the functionality of retrieving device information?

To enhance the functionality of retrieving device information, PHP can be integrated with JavaScript by using AJAX to make asynchronous requests to a PHP script that collects device information and returns it to the JavaScript code. This allows for seamless communication between the front-end and back-end, enabling the retrieval of device information without needing to reload the page. 

<?php
// device_info.php
$device_info = [
    'device_name' => $_SERVER['HTTP_USER_AGENT'],
    'device_ip' => $_SERVER['REMOTE_ADDR']
];

echo json_encode($device_info);
?>

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