PHP development to build an enterprise resource planning (ERP) system with sales contract management functions

PHP development to build an enterprise resource planning (ERP) system with sales contract management functions

With the continuous changes in the market and the expansion of enterprises, enterprises need a comprehensive enterprise resource planning (ERP) system to manage Various business processes and information. Among them, sales contract management is an important part of the enterprise, because the management of the contract is related to the enterprise's sales revenue and customer relations.

This article will introduce how to use PHP language to develop an ERP system with sales contract management functions, and provide some code examples.

1. Requirements Analysis

Before starting development, we need to analyze the requirements for the sales contract management function. Generally speaking, the sales contract management function should include the following aspects:

1. Contract entry: including basic information of the contract, such as contract number, contract date, contract amount, etc.
2. Contract query: You can query contract information according to different conditions, such as contract number, customer name, etc.
3. Contract modification: When the contract information changes, the contract can be modified.
4. Contract deletion: When a contract has been completed or is invalid, it can be deleted.
5. Contract Statistics: You can perform statistical analysis on contracts, such as statistics by customer, time range, etc.

2. System Design

Before system design, we need to design database tables to store contract information. Suppose we need to store the basic information of the contract, customer information and product information. The following is the design of the database table:

1. contract table: stores the basic information of the contract

• contract_id: Contract number
• contract_date: Contract date
• contract_amount: contract amount
• customer_id: customer number

2. customer table: stores customer information

• customer_id: customer number
• customer_name: customer name
• customer_address: customer address
• customer_contact: customer contact

3. product table: Store product information

• product_id: product number
• product_name: product name
• product_price: product price

according to the above design, we can start system development.

3. System development

1. Create database connection

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "erp_system";

$conn = new mysqli($servername, $username, $password, $dbname);

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

2. Contract entry

<?php
// 获取表单提交的数据
$contract_id = $_POST['contract_id'];
$contract_date = $_POST['contract_date'];
$contract_amount = $_POST['contract_amount'];
$customer_id = $_POST['customer_id'];

// 插入数据到contract表
$sql = "INSERT INTO contract (contract_id, contract_date, contract_amount, customer_id)
        VALUES ('$contract_id', '$contract_date', '$contract_amount','$customer_id')";

if ($conn->query($sql) === TRUE) {
    echo "合同录入成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>

3. Contract Query

<?php
// 获取查询条件
$contract_id = $_POST['contract_id'];
$customer_name = $_POST['customer_name'];

// 拼接查询语句
$sql = "SELECT * FROM contract, customer
        WHERE contract.customer_id = customer.customer_id
        AND contract.contract_id = '$contract_id'
        AND customer.customer_name = '$customer_name'";

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

if ($result->num_rows > 0) {
    // 输出查询结果
    while($row = $result->fetch_assoc()) {
        echo "合同编号: " . $row["contract_id"]. " - 合同日期: " . $row["contract_date"]. " - 合同金额: " . $row["contract_amount"]. "<br>";
    }
} else {
    echo "查询结果为空";
}

$conn->close();
?>

The above are some code examples. The development of the ERP system with complete sales contract management functions involves more functions and page design. This article just provides a simple example to help readers understand how to use the PHP language for development.

Summary

Sales contract management is an important functional module in the enterprise resource planning (ERP) system. This article uses PHP language for development and introduces the demand analysis, system design and some code examples of the sales contract management function. We hope that readers can gain some understanding and inspiration for the development of ERP systems for sales contract management functions through the introduction of this article.

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