What is the problem with docker loading volumes?

  docker, question
# Execution
 sudo docker run -d -p 81:80 -v /root/php:/root/php --name <tag> image-name

I saw it in logs when starting the mirror Mount container volumes.

chown: /var/www/html: Permission denied

How will this be solved? I checked the post and said that I want to modify the uid, but how do the root in the container and the root of the host, the uid are all 0 ~

# Query Method
 id root