How can the session_regenerate_id() function in PHP impact user login sessions and potentially cause unexpected logouts?

The session_regenerate_id() function in PHP can impact user login sessions by generating a new session ID, which can potentially cause unexpected logouts if not handled correctly. To avoid this issue, it is important to update any references to the old session ID with the new one after regenerating the ID. 

session_start();

// Regenerate session ID
session_regenerate_id();

// Update session ID in login session variable
$_SESSION['user_id'] = $new_user_id;

Keywords

session_regenerate_id PHP user login unexpected logouts impact

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