I am looking for guidance on how to change the document root setting for a website i have. in my HTDOCS folder in my installation of Apache i have several folders each for a different web project. However when when calling php global variables like $_SERVER['PHP_SELF'] i get a return of /holidaywebsite/index.php when what i want back is /index.php

I assume this is just a case of resetting the root in php? Can i do this in the php.ini file and if so how if, for example, i have my web project in a folder called holidaywebsite?

Thanks in advance for any help.