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php-How token is valid between two systems that are logged in and separated from the business

Source: Internet
Author: User
Keywords Php
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Php

At present, the design of a system has a separate login system, login successfully returned token as token in exchange for user information, but the logical part of the system can not determine the real-time token is valid, because token is issued by the login system, do not access the login system will not know whether token expired, If you want to know the token state in real time to create a verification interface between the two systems, you can verify that token is out of date, but it is too inefficient to log on to the system to verify tokens every time.

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