On Mon, Feb 13, 2012 at 5:28 PM, Rui Hu <tchrb...@gmail.com> wrote: > hi, > > How PHP sets variables in $_SERVER, say, $DOCUMENT_ROOT? What should I know > if I want to modify $_SERVER myself? > > Thanks! > > > -- > Best regards, > > Rui Hu > ---------------------------------------------------------------------------------------- > State Key Laboratory of Networking & Switching Technology > Beijing University of Posts and Telecommunications(BUPT) > MSN: tchrb...@gmail.com > -----------------------------------------------------------------------------------------
Rui, $_SERVER is an associative array. You can access "DOCUMENT_ROOT" with $_SERVER['DOCUMENT_ROOT']. It contains the document root directory under which the current script is executing. You can make changes to the $_SERVER array but it will have no effect on PHP itself. I mean, you can change the value of $_SERVER['DOCUMENT_ROOT'] to whatever you want at runtime, but of course it will not actually change the current directory if that's what you're after. Thanks, Michael -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
