Application of customer complaint management module developed by PHP in enterprise resource planning (ERP) system

Application of the customer complaint management module developed by PHP in the enterprise resource planning (ERP) system

Introduction:
In the daily operations of an enterprise, customer complaints are inevitable. In order to better manage and resolve customer complaints, many companies will introduce customer complaint management modules into their enterprise resource planning (ERP) systems. This article will explore how to use PHP to develop a fully functional customer complaint management module and apply it in an ERP system.

1. Project Requirements Analysis
The main functions of the customer complaint management module include: customer complaint information recording, processing process tracking, statistical analysis, etc. In the code examples, we will use a hypothetical ERP system as an example to demonstrate how to implement these functions.

2. Create the database structure

1. Create a database table named "complaints", including fields:
2. id: complaint ID (primary key)
3. customer_id: Customer ID
4. category: Complaint category
5. description: Complaint description
6. status: Complaint status (pending, in process, resolved)
7. create_time: creation time
8. update_time: update time
9. Create a database table named "customers", containing fields:
10. id: customer ID (primary key)
11. name: Customer name
12. contact: Contact information

3. Write PHP code to implement the function

1. Connect to the database ：

   <?php
   $db_host = "localhost";
   $db_user = "root";
   $db_password = "password";
   $db_name = "erp";
   
   $conn = mysqli_connect($db_host, $db_user, $db_password, $db_name);
   
   if (!$conn) {
    die("数据库连接失败：" . mysqli_connect_error());
   }
   ?>

2. Add customer complaint information:

   <?php
   if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $customer_id = $_POST['customer_id'];
    $category = $_POST['category'];
    $description = $_POST['description'];
    $status = '待处理';
    
    $sql = "INSERT INTO complaints (customer_id, category, description, status, create_time, update_time)
            VALUES ('$customer_id', '$category', '$description', '$status', now(), now())";
   
    if (mysqli_query($conn, $sql)) {
        echo "投诉信息添加成功！";
    } else {
        echo "添加失败：" . mysqli_error($conn);
    }
   }
   ?>

3. Display customer complaint information list:

   <?php
   $sql = "SELECT c.id, c.customer_id, cus.name AS customer_name, c.category, c.status, c.create_time
        FROM complaints AS c
        JOIN customers AS cus ON c.customer_id = cus.id
        ORDER BY c.create_time DESC";
   $result = mysqli_query($conn, $sql);
   
   if (mysqli_num_rows($result) > 0) {
    while ($row = mysqli_fetch_assoc($result)) {
        echo "投诉ID：" . $row['id'] . "<br>";
        echo "客户ID：" . $row['customer_id'] . "<br>";
        echo "客户名称：" . $row['customer_name'] . "<br>";
        echo "投诉分类：" . $row['category'] . "<br>";
        echo "投诉状态：" . $row['status'] . "<br>";
        echo "创建时间：" . $row['create_time'] . "<br>";
        echo "<hr>";
    }
   } else {
    echo "暂无投诉记录";
   }
   ?>

4. Function Expansion and Optimization

1. Operations for handling complaints:
2. Add handler fields and processing time fields;
3. Add the function of modifying complaint status.
4. Statistical analysis function:
5. Count the number of various complaint categories;
6. Count the number of complaints in different statuses.
7. Security optimization:
8. Use prepared statements to prevent SQL injection;
9. Encrypt and store sensitive fields.

Summary:
The customer complaint management module developed through PHP can effectively improve the efficiency and management level of enterprises in resolving customer complaints. In this article, we take an ERP system as an example to introduce how to use PHP to implement the core functions of this module, and also give some suggestions for function expansion and optimization. It is hoped that readers can further improve and apply this module according to their actual needs and improve the company's customer service level.

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