"?" in link '{$_SERVER['PHP_SELF']}?nCurrentPage=$nNextPage'

[mrherman]

I'm trying to understand a great pagination tutorial posted on PHPFREAKS.  Using the $_GET method, the links are processed.  An example is:

 

'{$_SERVER['PHP_SELF']}?nCurrentPage=$nNextPage'

 

The part I don't quite understand is the "?" (question mark).  Where does it come from and what precisely does it mean?  Does it always mean the same thing (or serve the same function) in every URL address?  For example, the address that is showing on my browser at this moment has a "?" embedded:

 

http://www.phpfreaks.com/forums/index.php?action=post;board=1.0

 

Thank you!

[schilly]

it means everything after it is not part of the filename and also variables that need to be parsed by the php engine into the $_GET array.

 

not totally sure if that is the right wording or not.

[mrherman]

Thank you for replying. 

 

So, the "?" is really just a divider, then?  Would that be correct to say?

[schilly]

ya pretty much =)

[mrherman]

Thanks again!