connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
// データを取得
$sql = "SELECT user_id, user_name, tact_number, game_level, game_number, game_name, is_correct, play_end_time FROM game_scores_tact ORDER BY play_end_time DESC";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
    echo "
";
    echo "| ユーザーID | ユーザー名 | TACTナンバー | ゲームレベル | ゲーム番号 | ゲーム名 | 正誤 | プレイ終了時間 | 
|---|
";
    while($row = $result->fetch_assoc()) {
        echo "";
        echo "| " . htmlspecialchars($row["user_id"]) . "";
        echo " | " . htmlspecialchars($row["user_name"]) . "";
        echo " | " . htmlspecialchars($row["tact_number"]) . "";
        echo " | " . htmlspecialchars($row["game_level"]) . "";
        echo " | " . htmlspecialchars($row["game_number"]) . "";
        echo " | " . htmlspecialchars($row["game_name"]) . "";
        echo " | " . ($row["is_correct"] == 1 ? "○" : "×") . "";
        echo " | " . htmlspecialchars($row["play_end_time"]) . "";
        echo " | 
";
    }
    echo "
";
} else {
    echo "結果がありません";
}
$conn->close();
?>