Laravel: share session data over multiple domains

If you want to share the session between multiple subdomains in that case you have to set the domain name config/session.php has set the domain name.

Example: if you have new.example.com and test.example.com so you have to set the domain name as example.com

'domain'     => env('SESSION_DOMAIN_URL','.example.com')

Solutions there worked for me, specifically setting the domain and then clearing my browser cookies & cache.

1. Capture the session id Session::getId() in Domain A
2. send the captured session id via HTTP POST to Domain B
3. Access the sent session id in domain B $sessionid_from_domainA = $_POST['session_from_A']
4. Set session in domain B Session::setId($sessionid_from_domainA)
5. Start Session in domain B Session::start()