What potential pitfalls should be considered when storing session IDs in a database and using cookies for user recognition in PHP?

One potential pitfall to consider when storing session IDs in a database and using cookies for user recognition in PHP is the risk of session hijacking if the session ID is not properly secured. To mitigate this risk, you should always use HTTPS to encrypt the communication between the client and server, and generate a unique and random session ID for each user session. 

// Start a secure session with a unique session ID
session_start([
    'cookie_secure' => true,
    'cookie_httponly' => true
]);

// Generate a random session ID
$session_id = bin2hex(random_bytes(32));
session_id($session_id);

Keywords

session IDs database storage cookies user recognition security vulnerabilities

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