売上予測分析機能を構築する統合基幹業務システム（ERP）システムのPHP開発

CREATE DATABASE sales;

USE sales;

CREATE TABLE sales_data (
    id INT AUTO_INCREMENT PRIMARY KEY,
    product_name VARCHAR(100),
    sale_date DATE,
    quantity INT,
    price DECIMAL(10, 2)
);

<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "sales";

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

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

// 插入销售数据
$productName = "产品A";
$saleDate = "2021-01-01";
$quantity = 100;
$price = 10.0;

$sql = "INSERT INTO sales_data (product_name, sale_date, quantity, price) VALUES ('$productName', '$saleDate', $quantity, $price)";

if ($conn->query($sql) === TRUE) {
    echo "销售数据插入成功";
} else {
    echo "插入失败: " . $conn->error;
}

// 进行销售预测分析
$sql = "SELECT product_name, SUM(quantity) AS total_quantity FROM sales_data GROUP BY product_name";

$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        echo "产品名称: " . $row["product_name"] . ", 销售总量: " . $row["total_quantity"] . "<br>";
    }
} else {
    echo "没有销售数据";
}

$conn->close();
?>