How can session management in PHP affect website performance?

Session management in PHP can affect website performance if not handled efficiently. Storing large amounts of data in sessions can lead to increased server load and slower response times. To improve performance, only store essential data in sessions and avoid excessive use of session variables. 

// Limit the amount of data stored in sessions
$_SESSION['user_id'] = $user_id;
$_SESSION['username'] = $username;

Keywords

session management PHP website performance session variables session handling

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