Re: questions about $_SERVER

"tamouse mailing lists" <tamouse.lists@gmail.com> wrote in message news:CAHUC_t8g43GE3xqvSU5SwFePGS1XG=TK1MhRbem9GjAArVEd8g@mail.gmail.com... > On Mon, Feb 13, 2012 at 2:39 PM, Tedd Sperling <tedd.sperling@gmail.com> > wrote: >> 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. > > Assuming you mean pre-defined ones, there shouldn't be, since no other > ones are documented. If there are, then either they should be > documented, or they should be ignored as it can be dangerous to use > undocumented features. :) Just to be clear - you asked if it were true that "there are no "globals" in PHP other than SuperGlobals: Don't forget that anything that you declare as global in a script is a global for that instance of that script (and whatever includes, etc. that it calls during its run)