public html - Find filepath to public_html directory or it's equivalent using PHP -

I am creating a .php file that will be uploaded to the root directory of a server. I need that .php file so that the path to the public_html folder can be traced or its equivalent.

I need to do this because I should be able to upload my .php file in root to any hosting account because many hosting companies use different file paths to file public Or even make a few different calls, I'm trying to figure out how to find it.

To do this is the server server variable or simple test. If not, there will always be a special file in the public_html folder, so I can search this particular file and get the path like this. I'm just concerned about finding a file name which is getting heavy on memory

The .ppp file being executed is located inside the root directory and it needs to detect the public_HML folder

like this: / home / User / file.php

needs to be detected

/ home / user / Public_html / or / home / User / var / www / or /home/user/website.com/html/ etc

The challenge with this is that a lot of the server's public_html should be outside the context of a request So that you know what is not a real way.

One thing is that you may be able to get this information from a php script (if you access the URL on the host), a php file called docroot.php Which looks like this.

  & lt ;? Php if ($ _SERVER ["REMOTE_ADDR"] == '127.0.0.1') {Echo $ _SERVER ["DOCUMENT_ROOT"]; }   
 Then you will have to do something within your file.fp  
  $ docRoot = trim (file_get_contents ("http://www.mydomain.com /docroot.php "));   
 This makes the assumption that the server can solve the name itself through the local interface.