Php值乘以表的行数

<?php
// 连接数据库
$servername = "数据库服务器地址";
$username = "数据库用户名";
$password = "数据库密码";
$dbname = "数据库名称";

$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 查询表的行数
$sql = "SELECT COUNT(*) AS row_count FROM 表名";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 获取行数
    $row = $result->fetch_assoc();
    $row_count = $row["row_count"];

    // 计算Php值乘以表的行数
    $php_value = 10; // 替换为实际的Php值
    $result = $php_value * $row_count;

    echo "Php值乘以表的行数结果为: " . $result;
} else {
    echo "表中没有数据";
}

// 关闭数据库连接
$conn->close();
?>