How to use PHP to write purchasing contract management function code in the inventory management system

How to use PHP to write purchasing contract management function code in the inventory management system

With the vigorous development of e-commerce, inventory management has become more and more important for enterprises. In inventory management, the procurement contract management function is particularly critical for enterprises. This article will introduce how to use PHP to write the purchasing contract management function code in the inventory management system.

Purchasing contract management is an important module in the inventory management system. It is responsible for managing the purchasing contracts between suppliers and enterprises. This module needs to implement the following functions: create purchase contracts, view purchase contract details, modify purchase contracts, delete purchase contracts, etc.

First, we need to create a PHP file named "purchase_contract.php". In this document, we will implement various functions of procurement contract management.

(1) Create a procurement contract

In this function, the user can enter relevant information of the procurement contract, including supplier name, contract number, contract amount, signing date, etc. This information is then stored in the database in the background for subsequent use.

The following is a code example for creating a purchase contract:

<?php
// 获取用户输入的合同相关信息
$supplier = $_POST['supplier'];
$contractNumber = $_POST['contract_number'];
$amount = $_POST['amount'];
$signDate = $_POST['sign_date'];

// 将合同信息插入数据库
$insertQuery = "INSERT INTO purchase_contract (supplier, contract_number, amount, sign_date) VALUES ('$supplier', '$contractNumber', '$amount', '$signDate')";

// 执行数据库操作
$result = mysqli_query($conn, $insertQuery);

// 判断操作是否成功
if ($result) {
  echo '合同创建成功。';
} else {
  echo '合同创建失败，请重试。';
}
?>

(2) View purchase contract details

This function is used to view the details of a specific purchase contract. Users can search by contract number or other key information and display relevant contract details.

The following is a code example to view the details of a purchase contract:

<?php
// 获取用户输入的合同编号
$contractNumber = $_GET['contract_number'];

// 根据合同编号查询数据库
$selectQuery = "SELECT * FROM purchase_contract WHERE contract_number = '$contractNumber'";
$result = mysqli_query($conn, $selectQuery);

// 判断是否有查询结果
if (mysqli_num_rows($result) > 0) {
  // 输出查询结果
  while ($row = mysqli_fetch_assoc($result)) {
    echo '合同编号：' . $row['contract_number'] . '<br>';
    echo '供应商：' . $row['supplier'] . '<br>';
    echo '合同金额：' . $row['amount'] . '<br>';
    echo '签约日期：' . $row['sign_date'] . '<br>';
  }
} else {
  echo '没有找到相关合同。';
}
?>

(3) Modify the purchase contract

This function is used to modify the information of the already created purchase contract. Similar to when creating a contract, the user can enter the contract information to be modified and submit it.

The following is a code example to modify the purchase contract:

<?php
// 获取用户输入的合同相关信息
$supplier = $_POST['supplier'];
$contractNumber = $_POST['contract_number'];
$amount = $_POST['amount'];
$signDate = $_POST['sign_date'];

// 更新数据库中的合同信息
$updateQuery = "UPDATE purchase_contract SET supplier = '$supplier', amount = '$amount', sign_date = '$signDate' WHERE contract_number = '$contractNumber'";

// 执行数据库操作
$result = mysqli_query($conn, $updateQuery);

// 判断操作是否成功
if ($result) {
  echo '合同修改成功。';
} else {
  echo '合同修改失败，请重试。';
}
?>

(4) Delete the purchase contract

This function is used to delete the purchase contract that has been created. Users can delete the corresponding contract by the contract number.

The following is a code example for deleting a purchase contract:

<?php
// 获取用户输入的合同编号
$contractNumber = $_POST['contract_number'];

// 从数据库中删除合同
$deleteQuery = "DELETE FROM purchase_contract WHERE contract_number = '$contractNumber'";

// 执行数据库操作
$result = mysqli_query($conn, $deleteQuery);

// 判断操作是否成功
if ($result) {
  echo '合同删除成功。';
} else {
  echo '合同删除失败，请重试。';
}
?>

The above is a sample code for using PHP to write the purchase contract management function in the inventory management system. Through these codes, we can implement the procurement contract management function in the inventory management system, allowing enterprises to manage procurement contracts more efficiently. Of course, this is just a simple example, and issues such as error handling and security may also need to be considered in actual projects. I hope this article will be helpful for learning how to use PHP to write procurement contract management functions.

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