What are the potential consequences of not understanding the difference between session and session-cookie in PHP?

Not understanding the difference between session and session cookie in PHP can lead to security vulnerabilities and data leakage. Sessions store data on the server side, while session cookies store data on the client side. To ensure secure data handling, it is important to use sessions for sensitive data and cookies for non-sensitive data. 

// Use sessions for sensitive data
session_start();
$_SESSION['user_id'] = 123;

// Use session cookies for non-sensitive data
setcookie('user_name', 'John Doe', time() + 3600, '/');

Keywords

session session-cookie PHP security authentication

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