我需要使用 PHP 创建一个井字游戏。这是我的初始代码，但是，单击表格中的图块只会刷新页面，而不会在面板中注册我的输入。我怎样才能使这段代码工作？
<!DOCTYPE html>
<html>
<head>
<title>Tic Tac Toe</title>
<style>
/* Styling for the game board */
table {
border-collapse: collapse;
margin: auto;
font-size: 25px;
font-weight: bold;
}
td {
width: 50px;
height: 50px;
border: 1px solid black;
text-align: center;
vertical-align: middle;
cursor: pointer;
}
td:hover {
background-color: #ccc;
}
</style>
</head>
<body>
<?php
// Initialize the game board
$board = array(
array("", "", ""),
array("", "", ""),
array("", "", "")
);
// Check if a player has won the game
function checkWin($board, $player) {
// Check for horizontal win
for ($i = 0; $i < 3; $i++) {
if ($board[$i][0] == $player && $board[$i][1] == $player && $board[$i][2] == $player) {
return true;
}
}
// Check for vertical win
for ($i = 0; $i < 3; $i++) {
if ($board[0][$i] == $player && $board[1][$i] == $player && $board[2][$i] == $player) {
return true;
}
}
// Check for diagonal win
if ($board[0][0] == $player && $board[1][1] == $player && $board[2][2] == $player) {
return true;
}
if ($board[0][2] == $player && $board[1][1] == $player && $board[2][0] == $player) {
return true;
}
// No win found
return false;
}
// Check if the game is a tie
function checkTie($board) {
for ($i = 0; $i < 3; $i++) {
for ($j = 0; $j < 3; $j++) {
if ($board[$i][$j] == "") {
return false;
}
}
}
return true;
}
// Start the game
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// Get the player's move
$row = $_POST["row"];
$col = $_POST["col"];
// Update the game board
$board[$row][$col] = "X";
// Check if the player won the game
if (checkWin($board, "X")) {
echo "<h1>You win!</h1>";
exit();
}
// Check if the game is a tie
if (checkTie($board)) {
echo "<h1>Tie game!</h1>";
exit();
}
// Computer's move
do {
$row = rand(0, 2);
$col = rand(0, 2);
} while ($board[$row][$col] != "");
$board[$row][$col] = "O";
// Check if the computer won the game
if (checkWin($board, "O")) {
echo "<h1>You lose!</h1>";
exit();
}
// Check if the game is a tie
if (checkTie($board)) {
echo "<h1>Tie game!</h1>";
exit();
}
}
?>
<h1>Tic Tac Toe</h1>
<table>
<?php
// Display the game board
for ($i = 0; $i < 3; $i++) {
echo "<tr>";
for ($j = 0; $j < 3; $j++) {
echo "<td onclick=\"location.href='?row=$i&col=$j'\">";
echo $board[$i][$j];
echo "</td>";
}
echo "</tr>";
}
?>
</table>
</body>
</html>
我期望程序通过在表格中放置一个“X”来注册我的输入，但点击后它没有显示任何内容。
您正在寻找
POST$_POST要从URL中获取数据，需要使用全局
$_GETGETifGETrowcol例如：
if (isset($_GET['row'], $_GET['col'])) {
// Get the player's move
$row = $_GET["row"];
$col = $_GET["col"];
// ...
}
也就是说，你会遇到另一个问题：你的数据不会持久化。当你再次移动的那一刻，之前的移动将会丢失。
你有几个选择来解决这个问题。要么查看 sessions 或 cookies，然后在那里读写你的板，或者你可以通过使用数组将内容附加到 URL（链接值）：
echo "<td onclick=\"location.href='?moves[]=1,1&moves[]=0,0'\">";
请记住，您还必须将计算机的移动添加到 URL。