How can the use of sessions in PHP impact performance and security?

Using sessions in PHP can impact performance by consuming server resources to store session data and requiring additional processing time to manage session information. Additionally, if sessions are not properly secured, they can pose a security risk by allowing unauthorized access to sensitive data. To improve performance and security, consider limiting the amount of data stored in sessions and implementing secure session handling practices, such as using HTTPS and setting proper session configuration options. 

// Start a secure session
session_set_cookie_params([
    'httponly' => true,
    'samesite' => 'Strict'
]);
session_start();

Keywords

sessions PHP performance security cookies

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