Code generation for supplier evaluation function in PHP inventory management system

Code generation for the supplier evaluation function in the PHP inventory management system

The inventory management system is an indispensable part of enterprise management, and the supplier evaluation function is an important part of the inventory management system component. Through the evaluation of suppliers, suitable suppliers can be selected for the enterprise to ensure the quality of purchased materials and the stability of supply. This article will demonstrate how to implement the supplier evaluation function through the PHP programming language.

First, we need to create a database table for supplier evaluation. MySQL or other relational databases can be used to store supplier information and evaluation data. The following is an example of a supplier evaluation table:

CREATE TABLE suppliers (
  id INT(11) AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(100) NOT NULL,
  address VARCHAR(255),
  contact VARCHAR(100),
  email VARCHAR(100),
  phone VARCHAR(20)
);

CREATE TABLE evaluations (
  id INT(11) AUTO_INCREMENT PRIMARY KEY,
  supplier_id INT(11),
  evaluation_date DATE,
  delivery_performance INT(11),
  product_quality INT(11),
  customer_service INT(11),
  CONSTRAINT fk_supplier_id FOREIGN KEY (supplier_id) REFERENCES suppliers(id)
);

In the above example, the suppliers table is used to store supplier data, including supplier name, address, contact information, etc. The evaluations table is used to store evaluation data for suppliers, including supplier ID, evaluation date, and ratings for delivery performance, product quality, customer service, etc.

Next, we can write PHP code to implement the supplier evaluation function. First, we need to establish a connection to the database:

<?php
$host = "localhost"; // 数据库主机地址
$username = "root"; // 数据库用户名
$password = "password"; // 数据库密码
$dbname = "inventory"; // 数据库名称

// 建立数据库连接
$connection = mysqli_connect($host, $username, $password, $dbname);

// 检查连接是否成功
if (!$connection) {
  die("数据库连接失败: " . mysqli_connect_error());
}

Then, we can write code to add the supplier’s evaluation data:

<?php
// ...

// 添加供应商评估数据
function addEvaluation($supplierId, $deliveryPerformance, $productQuality, $customerService) {
  global $connection;

  $evaluationDate = date("Y-m-d"); // 获取当前日期

  $sql = "INSERT INTO evaluations (supplier_id, evaluation_date, delivery_performance, product_quality, customer_service)
          VALUES ('$supplierId', '$evaluationDate', '$deliveryPerformance', '$productQuality', '$customerService')";

  $result = mysqli_query($connection, $sql);

  if ($result) {
    echo "成功添加供应商评估数据！";
  } else {
    echo "添加供应商评估数据失败： " . mysqli_error($connection);
  }
}

// 测试添加供应商评估数据
addEvaluation(1, 5, 4, 5);

In the above code, the addEvaluation function Used to insert supplier evaluation data into the evaluations table. The function accepts the supplier ID and ratings of delivery performance, product quality, customer service, etc. as parameters and inserts a new record in the database table.

In addition to adding evaluation data, we can also write code to retrieve the supplier's evaluation data:

<?php
// ...

// 获取指定供应商的评估数据
function getEvaluation($supplierId) {
  global $connection;

  $sql = "SELECT * FROM evaluations WHERE supplier_id = '$supplierId'";

  $result = mysqli_query($connection, $sql);

  if (mysqli_num_rows($result) > 0) {
    while ($row = mysqli_fetch_assoc($result)) {
      echo "评估日期: " . $row['evaluation_date'] . ", 交货性能: " . $row['delivery_performance'] . ", 产品质量: " . $row['product_quality'] . ", 客户服务: " . $row['customer_service'] . "<br/>";
    }
  } else {
    echo "没有找到供应商的评估数据！";
  }
}

// 测试获取供应商评估数据
getEvaluation(1);

In the above code, the getEvaluation function is used to obtain the specified supplier The evaluation data of the supplier is obtained, and the results are formatted and output.

Through the above code examples, we can implement the supplier evaluation function and easily add and retrieve evaluation data of different suppliers. Of course, based on actual needs, we can further improve the code to implement other functions, such as calculating the average rating of suppliers, generating supplier evaluation reports, etc.

In summary, by using the PHP programming language, we can easily implement the supplier evaluation function in the inventory management system. With the help of the characteristics of relational database and the flexibility of PHP, we can easily add, retrieve and analyze the supplier's evaluation data, thereby providing strong support for the enterprise's purchasing decisions.

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