How can session variables be properly managed to ensure they expire after a certain period of inactivity in PHP?

Session variables can be properly managed to expire after a certain period of inactivity by setting the session.gc_maxlifetime variable in the php.ini file to the desired session timeout value. Additionally, you can update the session cookie expiration time using session_set_cookie_params() function in PHP. 

// Set session timeout to 30 minutes
ini_set('session.gc_maxlifetime', 1800);

// Update session cookie expiration time
session_set_cookie_params(1800);

// Start the session
session_start();

Keywords

session variables expiration inactivity management PHP

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