Begging for answers server Web site root directory, how to resolve

Begging for answers where is the root directory of the server Web site
Installation instructions of the Imperial website Management system

I. Operational ENVIRONMENT requirements:
Php+mysql

Two. Installation steps:
1th Step: Upload
Upload all files and directory structures in the./upload directory of the installation package to the server's Web site root (note that uploading files and directories in the upload directory rather than uploading the upload directory itself).
Where is the website root directory of the server? Do I need to rent a virtual host online?

------Solution--------------------
Linux, in general, is the site root directory is
var/www/html/
or a htdocs.
------Solution--------------------
If you want someone else to access the word you need to buy a server, you can rent a virtual host. After payment is completed the host chamber tells you the FTP login address, username, password, and then you can upload the file by FTP. and the root directory of the site is different, you can ask the host agent's customer service, or their own directory in the FTP panel to find, the name is more www,public_html, htdocs,html these kinds of mostly.
------Solution--------------------
I guess you are not even the server what is not it. There must be a server hard disk space with a public IP, and a Web service is set up on this server, and the directory of the Web server is directly the root directory.

Let's rent a virtual space, show me the money ...

