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

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

In the inventory management system, supplier credit evaluation is one of the most important functions one. Credit evaluation of suppliers can help companies select suppliers with integrity and stable supply capabilities, thereby improving procurement efficiency and reducing procurement risks. This article will introduce how to use PHP code to implement the supplier credit evaluation function and give corresponding code examples.

1. Database design
   First, we need to design the corresponding database table to store supplier information and credit evaluation data. Suppose we have two tables: supplier and credit_evaluation. The supplier table is used to store basic information about suppliers, and the credit_evaluation table is used to store credit evaluation related data.

CREATE TABLE supplier (
    id INT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(255) NOT NULL,
    contact_person VARCHAR(255) NOT NULL,
    contact_number VARCHAR(255) NOT NULL
);

CREATE TABLE credit_evaluation (
    id INT PRIMARY KEY AUTO_INCREMENT,
    supplier_id INT NOT NULL,
    evaluation_date DATE NOT NULL,
    evaluation_score INT NOT NULL,
    FOREIGN KEY (supplier_id) REFERENCES supplier(id)
);

2. Supplier credit evaluation function code example

Let’s implement the code for the supplier credit evaluation function below. First, we need to establish a database connection.

<?php
// 数据库连接配置
$servername = "localhost";
$username = "root";
$password = "secret";
$dbname = "inventory_management";

// 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("连接失败: " . $conn->connect_error);
}
?>

Next, we can implement the input function of supplier information.

<?php
// 供应商信息录入
if($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST['name'];
    $contact_person = $_POST['contact_person'];
    $contact_number = $_POST['contact_number'];
    
    $sql = "INSERT INTO supplier (name, contact_person, contact_number) VALUES ('$name', '$contact_person', '$contact_number')";
    
    if ($conn->query($sql) === TRUE) {
        echo "供应商信息录入成功！";
    } else {
        echo "供应商信息录入失败：" . $conn->error;
    }
}
?>

Then, we can implement the supplier credit evaluation function.

<?php
// 供应商信用评估
if($_SERVER["REQUEST_METHOD"] == "POST") {
    $supplier_id = $_POST['supplier_id'];
    $evaluation_date = $_POST['evaluation_date'];
    $evaluation_score = $_POST['evaluation_score'];
    
    $sql = "INSERT INTO credit_evaluation (supplier_id, evaluation_date, evaluation_score) VALUES ('$supplier_id', '$evaluation_date', '$evaluation_score')";
    
    if ($conn->query($sql) === TRUE) {
        echo "信用评估成功！";
    } else {
        echo "信用评估失败：" . $conn->error;
    }
}
?>

Finally, we can also implement the function of querying the credit evaluation data of specific suppliers.

<?php
// 查询供应商信用评估数据
$sql = "SELECT supplier.name, credit_evaluation.evaluation_date, credit_evaluation.evaluation_score
        FROM supplier
        INNER JOIN credit_evaluation ON supplier.id = credit_evaluation.supplier_id
        WHERE supplier.id = 1";

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

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "供应商姓名：" . $row["name"]. " - 评估日期：" . $row["evaluation_date"]. " - 评估分数：" . $row["evaluation_score"]. "<br>";
    }
} else {
    echo "暂无评估数据";
}
?>

Through the above code example, we can implement the supplier credit evaluation function. Users can enter supplier information and evaluation data, and the system will perform credit evaluation based on the evaluation data and support querying the evaluation data of specific suppliers.

Summary:
By generating code for the supplier credit evaluation function in the PHP inventory management system, we can learn how to design database tables and use PHP to implement supplier information entry, credit evaluation and data query and other functions. These functions help improve the procurement efficiency of the inventory management system and reduce procurement risks.

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