Loop issue (I think)

[Dork270]

I am brand new to C++ and am trying to make a tic tac toe game. I have run into a problem. Whenever I play the game, the loop starting on line 28 doesn't loop. What is the problem? Also, if there are any other suggestions, please tell me.

#include <iostream>
#include <string>

using namespace std;

int main(){

// Initialization

	string box[10] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
	string player_choice;
	string playagain_yn;
	bool box_XorO[10];				// X is "true", O is "false"
	bool player_turn = true;		// X is "true", O is "false"
	bool player_win = false;
	bool get_winningplayer;			// X is "true", O is "false"
	bool playagain = true;

// Welcome users to game

	cout << "Welcome to Tic-tac-toe by John Doe!\n";
	system("pause");

// Begin game loop

	while(playagain){

		while(!player_win){

// Draw board

			cout << "-------------\n";
			cout << "| " << box[7] << " | " << box[8] << " | " << box[9] << " |\n";
			cout << "|---+---+---|\n";
			cout << "| " << box[4] << " | " << box[5] << " | " << box[6] << " |\n";
			cout << "|---+---+---|\n";
			cout << "| " << box[1] << " | " << box[2] << " | " << box[3] << " |\n";
			cout << "-------------\n";

// Player 1's turn

			if(player_turn){
				cout << "X's turn\n";
				cin >> player_choice;

				if(player_choice == "1"){
					box[1] = "X";
					box_XorO[1] = true;
				}

				if(player_choice == "2"){
					box[2] = "X";
					box_XorO[2] = true;
				}

				if(player_choice == "3"){
					box[3] = "X";
					box_XorO[3] = true;
				}

				if(player_choice == "4"){
					box[4] = "X";
					box_XorO[4] = true;
				}

				if(player_choice == "5"){
					box[5] = "X";
					box_XorO[5] = true;
				}

				if(player_choice == "6"){
					box[6] = "X";
					box_XorO[6] = true;
				}

				if(player_choice == "7"){
					box[7] = "X";
					box_XorO[7] = true;
				}

				if(player_choice == "8"){
					box[8] = "X";
					box_XorO[8] = true;
				}

				if(player_choice == "9"){
					box[9] = "X";
					box_XorO[9] = true;
				}

// Check column win conditions

				if(box_XorO[1] && box_XorO[4] && box_XorO[7]){
					get_winningplayer = true;
					player_win = true;
				}

				else if(box_XorO[2] && box_XorO[5]&& box_XorO[8]){
					get_winningplayer = true;
					player_win = true;
				}

				else if(box_XorO[3] && box_XorO[6] && box_XorO[9]){
					get_winningplayer = true;
					player_win = true;
				}

// Check row win conditions

				else if(box_XorO[1] && box_XorO[2] && box_XorO[3]){
					get_winningplayer = true;
					player_win = true;
				}

				else if(box_XorO[4] && box_XorO[5] && box_XorO[6]){
					get_winningplayer = true;
					player_win = true;
				}

				else if(box_XorO[7] && box_XorO[8] && box_XorO[9]){
					get_winningplayer = true;
					player_win = true;
				}

// Check diagonal win conditions

				else if(box_XorO[1] && box_XorO[5] && box_XorO[9]){
					get_winningplayer = true;
					player_win = true;
				}

				else if(box_XorO[3] && box_XorO[5] && box_XorO[7]){
					get_winningplayer = true;
					player_win = true;
				}

				player_turn = false;

			}

// Redraw board

			cout << "-------------\n";
			cout << "| " << box[7] << " | " << box[8] << " | " << box[9] << " |\n";
			cout << "|---+---+---|\n";
			cout << "| " << box[4] << " | " << box[5] << " | " << box[6] << " |\n";
			cout << "|---+---+---|\n";
			cout << "| " << box[1] << " | " << box[2] << " | " << box[3] << " |\n";
			cout << "-------------\n";

// Player 2's turn

			if(!player_turn){

				cout << "O's turn\n";
				cin >> player_choice;

				if(player_choice == "1"){
					box[1] = "O";
					box_XorO[1] = false;
				}

				if(player_choice == "2"){
					box[2] = "O";
					box_XorO[2] = false;
				}

				if(player_choice == "3"){
					box[3] = "O";
					box_XorO[3] = false;
				}

				if(player_choice == "4"){
					box[4] ="O";
					box_XorO[4] = false;
				}

				if(player_choice == "5"){
					box[5] = "O";
					box_XorO[5] = false;
				}

				if(player_choice == "6"){
					box[6] = "O";
					box_XorO[6] = false;
				}

				if(player_choice == "7"){
					box[7] = "O";
					box_XorO[7] = false;
				}

				if(player_choice == "8"){
					box[8] = "O";
					box_XorO[8] = false;
				}

				if(player_choice == "9"){
					box[9] = "O";
					box_XorO[9] = false;
				}

// Check column win conditions

				if(!box_XorO[1] && !box_XorO[4] && !box_XorO[7]){
					get_winningplayer = false;
					player_win = true;
				}

				else if(!box_XorO[2] && !box_XorO[5]&& !box_XorO[8]){
					get_winningplayer = false;
					player_win = true;
				}

				else if(!box_XorO[3] && !box_XorO[6] && !box_XorO[9]){
					get_winningplayer = false;
					player_win = true;
				}

// Check row win conditions

				else if(!box_XorO[1] && !box_XorO[2] && !box_XorO[3]){
					get_winningplayer = false;
					player_win = true;
				}

				else if(!box_XorO[4] && !box_XorO[5] && !box_XorO[6]){
					get_winningplayer = false;
					player_win = true;
				}

				else if(!box_XorO[7] && !box_XorO[8] && !box_XorO[9]){
					get_winningplayer = false;
					player_win = true;
				}

// Check diagonal win conditions

				else if(!box_XorO[1] && !box_XorO[5] && !box_XorO[9]){
					get_winningplayer = false;
					player_win = true;
				}

				else if(!box_XorO[3] && !box_XorO[5] && !box_XorO[7]){
					get_winningplayer = false;
					player_win = true;
				}

				player_turn = true;

			}

		}

// Declare winner

		if(get_winningplayer){
			cout << "Congratulations X! You have won!\n";
			system("pause");
		}

		else if(!get_winningplayer){
			cout << "Congratulations O! You have won!\n";
			system("pause");
		}

// Do the users wish to play again?

		cout << "Would you like to play another game? y/n\n";
		cin >> playagain_yn;

		while(playagain_yn != "y" && playagain_yn != "n"){
			cout << "Invalid choice. Please try again.\n";
			cin >> playagain_yn;
		}

		if(playagain_yn == "y"){

// Reload game

			box[1] = "1"; box[2] = "2"; box[3] = "3"; box[4] = "4"; box[5] = "5";
			box[6] = "6"; box[7] = "7"; box[8] = "8"; box[9] = "9";
			box_XorO[1] = false; box_XorO[2] = false; box_XorO[2] = false; box_XorO[2] = false; box_XorO[2] = false;
			box_XorO[2] = false; box_XorO[2] = false; box_XorO[2] = false; box_XorO[1] = false;
			player_turn = true;
			player_win = false;
			get_winningplayer = NULL;

		}

		else if(playagain_yn == "n"){

// End game

			playagain = false;
		}

	}

	return 0;

}

[ascii]

whats the problem exactly, the program runs perfectly on my computer. however youre goign to want to redo the win conditions. when i did 7 for X's and 3 for O's it thinks i won. try making an array to store the X's and an array to store the O's

[Dork270]

That's the problem. After player 2's turn, it ends the loop.