What are the limitations of using PHP to monitor and manage user sessions across multiple devices?

One limitation of using PHP to monitor and manage user sessions across multiple devices is that PHP sessions are tied to a single device/browser. To overcome this limitation, you can implement a custom solution using cookies to store session data that can be accessed across devices. 

// Set session data in a cookie
setcookie('session_data', serialize($_SESSION), time() + (86400 * 30), '/');

// Retrieve session data from cookie
$_SESSION = unserialize($_COOKIE['session_data']);

Keywords

PHP user sessions limitations multiple devices management

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