php中的Docker环境变量

Question

How do I use the variables defined in Docker for use in PHP?

Example in Docker:

$ docker run -d my_container -e MYSQL_CONNECT="{host:'x', port:'x'}"

Example in PHP: $_ENV['MYSQL_CONNECT']

I've searched, but could not find anything concrete.

Answer 1

you need to provide the environment variables before the image name, like this:

$ docker run -d -e MYSQL_CONNECT="{host:'x', port:'x'}" my_container