要創建用戶表并添加數據，可以按照以下步驟進行：

1. 創建數據庫連接：

$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDB";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

2. 創建用戶表：

$sql = "CREATE TABLE users (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(30) NOT NULL,
    email VARCHAR(50) NOT NULL,
    password VARCHAR(50) NOT NULL
)";
if ($conn->query($sql) === TRUE) {
    echo "Table users created successfully";
} else {
    echo "Error creating table: " . $conn->error;
}

3. 添加用戶數據：

$username = "JohnDoe";
$email = "johndoe@example.com";
$password = "password123";

$sql = "INSERT INTO users (username, email, password) VALUES ('$username', '$email', '$password')";
if ($conn->query($sql) === TRUE) {
    echo "New record created successfully";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

4. 關閉數據庫連接：

$conn->close();

以上是一個簡單的示例，你可以根據自己的需求對表結構和數據進行更改。在實際應用中，建議使用預處理語句來防止SQL注入攻擊。