[ifcho]

Why do you need Docker for a simple PHP & MySQL script? To install it you just need to setup a MySQL database and enter the credentials in the setup script. Finally, add the tracking code to your site, but that's the same for every analytics engine.

[dewey]

And you also need to set up a bunch of things in your web server, add the cron jobs, run the update script and hope everything still works afterwards etc.

[eitland]

Maybe if someone hasn't an existing php host and doesn't want to configure one from scratch.