Re: questions about $_SERVER

On Feb 13, 2012, at 4:10 AM, Stuart Dallas wrote: > On 13 Feb 2012, at 06:28, Rui Hu wrote: > >> How PHP sets variables in $_SERVER, say, $DOCUMENT_ROOT? What should I know >> if I want to modify $_SERVER myself? > > Once your script starts the superglobals are no different to any other variables, except that > they're in scope at all times. That's probably the reason why they are named "SuperGlobals". :-) But to be more descriptive, these are simply globals that are predefined by php -- see: http://php.net/manual/en/language.variables.superglobals.php I believe, (please show me otherwise) there are no "globals" in PHP other than SuperGlobals. Cheers, tedd _____________________ tedd@sperling.com http://sperling.com