PHP development to build an enterprise resource planning (ERP) system with project cost management functionality

PHP development to build an enterprise resource planning (ERP) system with project cost management functions

As enterprises develop, project management becomes more and more important. Project cost management is a key part, which involves project budget planning, cost control, cost analysis and other aspects. In order to better achieve project cost management, many companies choose to use enterprise resource planning (ERP) systems for centralized management and control. This article will introduce how to develop an ERP system with project cost management functions through PHP and provide relevant code examples.

1. Design database

First, we need to design a suitable database to store data related to project cost management. The following is a simplified database table design example:

CREATE TABLE projects (
    id INT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(255) NOT NULL,
    budget DECIMAL(10, 2) DEFAULT 0,
    start_date DATE,
    end_date DATE
);

CREATE TABLE expenses (
    id INT PRIMARY KEY AUTO_INCREMENT,
    project_id INT,
    amount DECIMAL(10, 2) NOT NULL,
    expense_date DATE,
    category VARCHAR(255),
    description TEXT,
    FOREIGN KEY (project_id) REFERENCES projects(id)
);

In the above database table design, the projects table stores basic information about the project, including project name, budget, start date, and end date. expenses The table is used to store specific project expenditure information, including project ID, expenditure amount, expenditure date, expenditure category and description. The two tables are related through the project_id field.

2. Create a project cost management module

Next, we will use PHP to develop a project cost management module, which includes the following functions: add projects, edit projects, delete projects, add Expenses and expense lists.

1. Add item:

   function addProject($name, $budget, $start_date, $end_date) {
    // 连接数据库
    $conn = dbConnect();
    
    // 插入数据
    $sql = "INSERT INTO projects (name, budget, start_date, end_date) VALUES ('$name', '$budget', '$start_date', '$end_date')";
    $result = mysqli_query($conn, $sql);
    
    // 返回结果
    if ($result) {
        return true;
    } else {
        return false;
    }
   }

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2. Edit item:

   function editProject($id, $name, $budget, $start_date, $end_date) {
    // 连接数据库
    $conn = dbConnect();
    
    // 更新数据
    $sql = "UPDATE projects SET name = '$name', budget = '$budget', start_date = '$start_date', end_date = '$end_date' WHERE id = $id";
    $result = mysqli_query($conn, $sql);
    
    // 返回结果
    if ($result) {
        return true;
    } else {
        return false;
    }
   }

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3. Delete item:

   function deleteProject($id) {
    // 连接数据库
    $conn = dbConnect();
    
    // 删除数据
    $sql = "DELETE FROM projects WHERE id = $id";
    $result = mysqli_query($conn, $sql);
    
    // 返回结果
    if ($result) {
        return true;
    } else {
        return false;
    }
   }

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4. Add expenditure:

   function addExpense($project_id, $amount, $expense_date, $category, $description) {
    // 连接数据库
    $conn = dbConnect();
    
    // 插入数据
    $sql = "INSERT INTO expenses (project_id, amount, expense_date, category, description) VALUES ('$project_id', '$amount', '$expense_date', '$category', '$description')";
    $result = mysqli_query($conn, $sql);
    
    // 更新项目预算
    if ($result) {
        updateProjectBudget($project_id, $amount);
        return true;
    } else {
        return false;
    }
   }

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5. Expenditure list:

   function getExpenseList($project_id) {
    // 连接数据库
    $conn = dbConnect();
    
    // 查询数据
    $sql = "SELECT * FROM expenses WHERE project_id = $project_id";
    $result = mysqli_query($conn, $sql);
    
    // 返回结果
    return mysqli_fetch_all($result, MYSQLI_ASSOC);
   }

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   3. Implement user interface

   Finally, we need to use HTML, CSS and JavaScript to implement the specific user interface. This part of the code is relatively long and cannot be shown here one by one. You can refer to the link below to get a complete code example:

   [Project Cost Management System Code Example](https://github.com/example-erp -project-cost-management)

   Through the above PHP development examples, we can build an ERP system with project cost management functions. Through this system, enterprises can better budget planning, cost control and expense analysis, and improve the efficiency and accuracy of project management.

   Summary:

   This article introduces how to develop an enterprise resource planning (ERP) system with project cost management functions through PHP. Through database design, PHP development and user interface implementation, we can build a complete project cost management module. I hope this article will be helpful to businesses and developers who need to develop similar functionality.

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