Session cross-domain problem, there are now two sets of systems, how to get through their login status, with the Thinksegmentfault

Two systems placed on the same server are thinkphp and now share the login status. What should be done.
No clue.

Reply content:

Two systems placed on the same server are thinkphp and now share the login status. What should be done.
No clue.

There are several solutions:

• Using the same root domain name, such as a.sf.com,b.sf.com, when logged in, the cookie is saved to the root domain name, one website login, and the other one is logged in simultaneously.

• One system provides a login authorization interface, while another system logs on using this interface to implement login

• Use third-party solution components, such as Ucenter,oauth2

Either Redis or memcached can

Change the session to Redis or memcached.

