Why is my code not running in a docker container?

Question

PHP

When I run it with my hands in the console, this code works. But if I run it from the controller, it only works for the launch of the container. Entering inside the container and the command to create a folder inside it - does not happen. It's strange that it works manually. Why?

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shell_exec{'docker run --name my_box -it -d my_image && docker exec -it my_box bash && echo hellou_my_box > my-file.php');
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Answer 1

1. Does the interpreter that executes the shell_exec command have permission to run docker' images? The user must be a member of the docker group
2. what kind of shell_exec is this from which opera?