What are the potential pitfalls of relying on SessionID for tracking online users in PHP?

Relying solely on SessionID for tracking online users in PHP can lead to security vulnerabilities such as session hijacking or fixation. To mitigate these risks, it is recommended to implement additional security measures such as regenerating the SessionID periodically or after certain actions. 

// Regenerate SessionID periodically
if (rand(1, 100) <= 5) { // 5% chance of regenerating SessionID
    session_regenerate_id();
}

Keywords

SessionID tracking online users PHP security

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