How can PHP $_SESSION timeout be effectively handled in AJAX requests?

When handling AJAX requests in PHP, it is important to manage the session timeout effectively. One way to handle this is by checking the session expiration timestamp in each AJAX request and renewing the session if it is about to expire. This can be achieved by setting a timeout threshold and checking if the session expiration timestamp is within that threshold before each AJAX request. 

// Check session expiration and renew if necessary
if(isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > $session_timeout)) {
    session_regenerate_id(true); // Regenerate session ID
    $_SESSION['LAST_ACTIVITY'] = time(); // Update last activity time
}

// Update last activity time
$_SESSION['LAST_ACTIVITY'] = time();

Keywords

PHP $_SESSION timeout AJAX requests

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