Application of purchasing return statistical report module developed by PHP in enterprise resource planning (ERP) system

Application of the purchasing return statistical report module developed by PHP in the enterprise resource planning (ERP) system

With the expansion of enterprise scale and the complexity of business processes, enterprises need a complete information system to manage various business activities. Among them, the purchase return statistical report module is a very important part of the enterprise resource planning (ERP) system. This article will introduce the application of the purchase return statistical report module developed using PHP in the ERP system, as well as related code examples.

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1. Function introduction

The purchasing return statistical report module is a functional module used to collect statistics and analyze enterprise purchasing returns. It can flexibly display various data indicators of purchase returns according to the needs of the enterprise, including return quantity, return amount, return ratio, etc.

Specific functions include:

1. Purchase return details query: Query purchase return details based on date range, supplier, product classification and other conditions.
2. Return quantity statistics: Count the quantity of purchase returns according to dimensions such as product, supplier, date, etc.
3. Return amount statistics: Count the amount of purchase returns according to dimensions such as product, supplier, date, etc.
4. Return ratio analysis: Analyze the return ratio based on the comparison of the returned quantity and the purchase quantity, and perform trend analysis.

2. Development steps

1. Database design

First of all, it is necessary to design the corresponding database table structure to store data related to purchase returns. For example:

• Purchase returns master table: stores the basic information of purchase return orders, including return order number, return date, supplier, etc.
• Purchase Return Details Table: Stores the detailed information of each return, including product number, return quantity, return amount, etc.

2. Back-end development

Use PHP as the back-end development language, and use database operation classes (such as PDO) to implement reading and writing operations on the database . The following is a sample code:

<?php
// 连接数据库
$dsn = 'mysql:host=localhost;dbname=erp_database';
$username = 'root';
$password = '';
$db = new PDO($dsn, $username, $password);

// 查询退货明细
function getReturnDetails($startDate, $endDate, $supplierId, $categoryId) {
    global $db;
    $sql = "SELECT * FROM return_details WHERE return_date BETWEEN ? AND ?";
    $params = array($startDate, $endDate);
    if ($supplierId) {
        $sql .= " AND supplier_id = ?";
        $params[] = $supplierId;
    }
    if ($categoryId) {
        $sql .= " AND category_id = ?";
        $params[] = $categoryId;
    }
    $stmt = $db->prepare($sql);
    $stmt->execute($params);
    return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// 统计退货数量
function countReturnQuantity($startDate, $endDate, $supplierId, $categoryId) {
    global $db;
    $sql = "SELECT supplier_id, category_id, SUM(return_quantity) AS total_quantity FROM return_details WHERE return_date BETWEEN ? AND ?";
    $params = array($startDate, $endDate);
    if ($supplierId) {
        $sql .= " AND supplier_id = ?";
        $params[] = $supplierId;
    }
    if ($categoryId) {
        $sql .= " AND category_id = ?";
        $params[] = $categoryId;
    }
    $sql .= " GROUP BY supplier_id, category_id";
    $stmt = $db->prepare($sql);
    $stmt->execute($params);
    return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// 统计退货金额
function countReturnAmount($startDate, $endDate, $supplierId, $categoryId) {
    global $db;
    $sql = "SELECT supplier_id, category_id, SUM(return_amount) AS total_amount FROM return_details WHERE return_date BETWEEN ? AND ?";
    $params = array($startDate, $endDate);
    if ($supplierId) {
        $sql .= " AND supplier_id = ?";
        $params[] = $supplierId;
    }
    if ($categoryId) {
        $sql .= " AND category_id = ?";
        $params[] = $categoryId;
    }
    $sql .= " GROUP BY supplier_id, category_id";
    $stmt = $db->prepare($sql);
    $stmt->execute($params);
    return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// 示例调用
$startDate = '2022-01-01';
$endDate = '2022-02-01';
$supplierId = 1;
$category = 2;

$returnDetails = getReturnDetails($startDate, $endDate, $supplierId, $categoryId);
$returnQuantity = countReturnQuantity($startDate, $endDate, $supplierId, $categoryId);
$returnAmount = countReturnAmount($startDate, $endDate, $supplierId, $categoryId);

// 输出结果
print_r($returnDetails);
print_r($returnQuantity);
print_r($returnAmount);

The above sample code implements query of return details based on date, supplier and product category, as well as statistics of return quantity and return amount.

3. Front-end development

Use front-end technologies such as HTML, CSS and JavaScript to develop visual data display pages. You can use an open source JavaScript chart library (such as Chart.js) to draw purchase return statistical report charts.

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Summary:

This article introduces the application of the purchase return statistical report module developed using PHP in the enterprise resource planning (ERP) system. Through database queries and statistical operations, relevant data on purchase returns can be easily obtained and displayed to users through the front-end page. Such functional modules can help companies better understand their purchase returns and provide strong support for business decisions.

The development of such functional modules needs to take into account the actual needs of the enterprise and carry out customized development according to different business scenarios and data structures. At the same time, we also need to pay attention to issues such as data security and performance optimization to ensure the reliability and stability of the system. I hope the content of this article can be helpful to PHP developers in applying the purchase return statistical report module in ERP system development.

Reference materials:

• PHP official documentation: https://www.php.net/
• PDO documentation: https://www.php.net /manual/en/book.pdo.php
• Chart.js official documentation: https://www.chartjs.org/

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