"tamouse mailing lists" <tamouse.li...@gmail.com> wrote in message 
> On Mon, Feb 13, 2012 at 2:39 PM, Tedd Sperling <tedd.sperl...@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) 

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