How can the validity period of a PHP session be extended to prevent data loss?

To extend the validity period of a PHP session and prevent data loss, you can use the session_set_cookie_params() function to set the session cookie lifetime to a longer period. This will ensure that the session remains active for a longer duration, allowing users to stay logged in without losing their session data.

// Extend session cookie lifetime to 1 hour
session_set_cookie_params(3600);
session_start();