PHP development of enterprise resource planning (ERP) systems that build procurement analysis functions

PHP development to build an enterprise resource planning (ERP) system with procurement analysis function

The enterprise resource planning (ERP) system is a comprehensive management software that can integrate various functional modules of the enterprise. It can realize centralized management and data analysis of many business functions such as purchasing, sales, production, warehousing, and finance. In this article, we will explore how to use PHP to develop a purchasing analysis function based on an ERP system.

First, we need to determine the database structure of the ERP system. In the procurement analysis function, we will involve the following key tables:

1. Purchase order table (purchase_orders): used to store purchase order information, including order number, supplier, product list, purchase Quantity etc.
2. Suppliers table (suppliers): stores supplier information, including supplier number, name, address, contact person, etc.
3. Product table (products): stores product information, including product number, name, specifications, unit price, etc.
4. Inventory form (inventory): used to record the warehousing information of purchased goods, including warehousing number, product number, warehousing quantity, etc.

Next, we can start writing PHP code to implement the procurement analysis function. The following is a simple example:

// 获取指定供应商的采购订单数量
function getPurchaseOrderCountBySupplier($supplierId) {
    // 连接数据库
    $conn = mysqli_connect("localhost", "username", "password", "erp_system");
    
    // 查询供应商的采购订单数量
    $sql = "SELECT COUNT(*) FROM purchase_orders WHERE supplier_id = $supplierId";
    $result = mysqli_query($conn, $sql);
    
    // 解析查询结果
    $count = mysqli_fetch_array($result);
    
    // 关闭数据库连接
    mysqli_close($conn);
    
    return $count[0];
}

// 获取指定商品的采购订单数量
function getPurchaseOrderCountByProduct($productId) {
    // 连接数据库
    $conn = mysqli_connect("localhost", "username", "password", "erp_system");
    
    // 查询商品的采购订单数量
    $sql = "SELECT COUNT(*) FROM purchase_orders o, purchase_order_items i WHERE o.order_id = i.order_id AND i.product_id = $productId";
    $result = mysqli_query($conn, $sql);
    
    // 解析查询结果
    $count = mysqli_fetch_array($result);
    
    // 关闭数据库连接
    mysqli_close($conn);
    
    return $count[0];
}

// 获取采购商品的入库数量
function getInventoryCountByProduct($productId) {
    // 连接数据库
    $conn = mysqli_connect("localhost", "username", "password", "erp_system");
    
    // 查询商品的入库数量
    $sql = "SELECT SUM(quantity) FROM inventory WHERE product_id = $productId";
    $result = mysqli_query($conn, $sql);
    
    // 解析查询结果
    $count = mysqli_fetch_array($result);
    
    // 关闭数据库连接
    mysqli_close($conn);
    
    return $count[0];
}

// 示例用法
$supplierId = 1;
$productIid = 2;
echo "供应商的采购订单数量：" . getPurchaseOrderCountBySupplier($supplierId) . "<br>";
echo "商品的采购订单数量：" . getPurchaseOrderCountByProduct($productId) . "<br>";
echo "商品的入库数量：" . getInventoryCountByProduct($productId) . "<br>";

The above example code demonstrates how to use PHP to write a function to obtain the purchase order quantity of a specified supplier, the purchase order quantity of a specified product, and the warehousing quantity of purchased goods. By interacting with the database we can obtain the required data and use it for procurement analysis.

In actual development, we can combine front-end frameworks (such as Bootstrap) to design and beautify the user interface, and combine these PHP functions with HTML forms or other user interaction elements to achieve a more complete and interactive comprehensive purchasing analysis function.

To sum up, by using PHP to develop the procurement analysis function of the enterprise resource planning (ERP) system, we can easily obtain and analyze the data information of purchase orders, suppliers and commodities, and provide decision-making for the enterprise. Support and business optimization.

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