a simple problem

pnxi

I have a problem not know how to handle, say I have a tic tac toe game, which is like

  XXO
  OOX
  OOX

How can I use a nested for loop to check whether each player win the game, here is part what I do so far:

 for($i=0; $i<3; $i++)
 {
       for($j=0; $j<3; $j++)
       {
            if($grid[$i][$j] == "X")
           {
	     print("Player1 win");
           }
           else if($grid[$i][$j] == "O")
          {
	    print("Player2 win");
           } 
       }
}

I know print statement should outside for loop somewhere, I don't where should I put it? or is there other good way to solve the problem?

kevinc

Hi,

Your logic is totally wrong.

You can't simply check one cell if it's X or O, then determine if Player 1 or Player 2 is the winner. There's quite a bit more to it.

Basically, you have the following winning combinations:
Top across, Middle across, bottom across. Left down, Middle down, Right down. Left diagonal, Right Diagonal.

That's 8 combinations. What I'd do, is generate an array with 9 cells. That looks something like this:
1 2 3
4 5 6
7 8 9

Then, you pass that array to a function/class to check. You have predefined rules, which, if match, you can determine a winner.

Hope this helps.

Kevin

pnxi

Hi, thanx for replying, actually, I have store all the value in a two demsional array which is $grid[][], if I still insist to use a nested loop, any way to figure it out?🙁