Help with server migration

I want to move from one server to another. I'm having problems with the path specification.

I copied the files to the directory /httpdocs.

The URL (lager.mydomain.de) points to this directory.

It would be great if someone could tell me the correct data that I need to enter in config.php under /data/.

version.json => "Version": "4.0.2",

php => 8.3