What if multiple players have the same hand via using all the shared cards?
This would be a split pot if cards are revealed at show down.

In Texas Hold 'Em players make the best 5 card they can from the 7 they have available.  When those best 5 are the 5 community cards this is known as 'Playing the board'.  If multiple players best hand is 'the board' and this is the winning hand then it is a split.  the 2 cards they have in there hand take no part in determine the winner.

eg. two players hole cards are AA and 23.  The board comes out 6789T.  Both players have a Ten High Straight and nothing more so split if cards shown at showdown.