PHP: Get absolute path from absolute URL

Question

I have an absolute path of a file, Is there a way to get the file absolute path

http://domainname/rootfolder/filename.php

and I wanna get s

Answer 1

Try $_SERVER['DOCUMENT_ROOT']. Assuming a URL like

http://example.com/subfolder/somefile.html

and the file's actual location on the server being

/home/sites/example.com/html/subfolder/somefile.html
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^--- $_SERVER['DOCUMENT_ROOT']