This site can’t be reached

I try to follow the command you provdie

1. docker build -t php-docker-apache-example
2. docker run -d -p 8080:80 php-docker-apache-example

when I try to enter http://localhost:8080 and I get this site cann't be reached. I am now using docker toolbox under window 7

[hthiers]

You have to use the docker machine IP