PHP built-in server boot after the port can not be converted through Docker?

I made a mirror, exposing the 8000 port, the container started the Symfony built-in server, the port is 8000, internal access is not a problem, and then I host Port 8001 is mapped to the inside of the 8000 port, Access said connection is not on. As I understand it, it should be possible.

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I made a mirror, exposing the 8000 port, the container started the Symfony built-in server, the port is 8000, internal access is not a problem, and then I host Port 8001 is mapped to the inside of the 8000 port, Access said connection is not on. As I understand it, it should be possible.

The default is to listen to localhost, you change to monitor 0.0.0.0

Http://symfony.com/doc/current/cookbook/web_server/built_in.html

$ php bin/console server:start 0.0.0.0:8000

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