What are the limitations of using cookies for user tracking in PHP surveys?

Using cookies for user tracking in PHP surveys can be limited because some users may have cookies disabled in their browsers, leading to inaccurate tracking data. To overcome this limitation, you can use session variables to track users instead of relying solely on cookies. 

// Start the session
session_start();

// Set a session variable to track user
$_SESSION['user_id'] = uniqid();

Keywords

cookies user tracking limitations PHP surveys

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