Is using MAC addresses as a unique identifier feasible in PHP for device tracking?

Using MAC addresses as a unique identifier for device tracking in PHP is not feasible due to the limitations of obtaining MAC addresses reliably and securely over the internet. A better approach would be to generate a unique identifier on the server side and store it in a cookie or session variable on the client side for tracking purposes. 

// Generate a unique identifier for device tracking
$unique_id = uniqid();

// Store the unique identifier in a cookie
setcookie('device_id', $unique_id, time() + 3600, '/');

// Retrieve the device identifier from the cookie
$device_id = $_COOKIE['device_id'];

// Use the device identifier for tracking purposes
echo "Device ID: " . $device_id;

Keywords

MAC addresses unique identifier device tracking feasibility PHP

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