如何使用mysqli_fetch_array获取数据库结果

// 创建数据库连接
$mysqli = new mysqli("localhost", "username", "password", "dbname");

// 检查连接是否成功
if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}

// 执行查询语句
$sql = "SELECT id, name, email FROM users";
$result = $mysqli->query($sql);

// 检查查询结果是否为空
if ($result->num_rows > 0) {
    // 遍历查询结果
    while ($row = mysqli_fetch_array($result)) {
        echo "ID: " . $row['id'] . "<br>";
        echo "Name: " . $row['name'] . "<br>";
        echo "Email: " . $row['email'] . "<br>";
    }
} else {
    echo "0 results";
}

// 关闭数据库连接
$mysqli->close();