Guidance method for implementing order product exchange function in PHP Developer City

How to use PHP Developer City to realize the function of order product exchange

With the rapid development of e-commerce, more and more people choose to shop online. For shopping malls, providing good after-sales service is one of the important means to attract and retain customers. Among them, the order product exchange function plays an important role in improving customer experience. This article will introduce how to use the PHP developer mall system to implement the order product exchange function.

1. Requirements Analysis

Before starting development, we must first clarify the requirements for the order product exchange function. Generally speaking, the exchange of order goods can be divided into the following steps:

1. User submits an exchange application: The user submits an exchange application on the order details page, selects the goods that need to be exchanged, and fills in the relevant information.
2. Merchant review application: After the merchant backend receives the user's exchange application, it can review it. After passing the review, the merchant will confirm the exchange application and provide the user with a return address.
3. User returns: After receiving the return address provided by the merchant, the user returns the goods that need to be exchanged to the merchant.
4. Merchant confirms receipt and ships the goods: The merchant will inspect the goods returned by the user after receiving them. If the goods meet the return requirements, the merchant will re-ship the goods to the user.

2. Technical Implementation

Below, we will introduce in detail how to use the PHP developer city system to realize the function of exchanging order goods.

1. Database design

In order to save information about orders and products, we need to design corresponding database tables. The database generally includes an order table, a product table, a user table, etc.

2. The user submits an exchange application

The user selects the product that needs to be exchanged on the order details page and fills out the exchange application form. When submitting a form, relevant data is transmitted to the server through the POST method.

3. Merchant review application

Merchant logs into the backend system to view and review the user's exchange application. After passing the review, the merchant should store the relevant information in the database.

4. User Returns

After the merchant is approved, the return address will be provided to the user. After receiving the return address, the user returns the product to the merchant and can choose the logistics method. Merchants should store return logistics information in the database.

5. Merchant confirms receipt and shipment

Merchant will inspect the goods returned by the user after receiving them. If the product meets the return requirements, the merchant will reship it for the user and store the relevant information in the database.

3. Code Implementation

The following is a simple example of PHP code to implement the product exchange function:

//Connect to the database
$conn = mysqli_connect("localhost", "username", "password", "database");

if(!$conn){
die("Database connection failed:" . mysqli_connect_error() );
}

//User submits exchange application
if(isset($_POST['submit'])){
$order_id = $_POST['order_id'];
$product_id = $_POST['product_id'];

//Insert exchange information into the database
$sql = "INSERT INTO exchange (order_id, product_id) VALUES ('$order_id', '$product_id')";
mysqli_query($conn, $sql);

//Jump to the audit results page
header("Location: audit_result.php");
exit();
}

//Merchant review application
if(isset($_GET['audit'])){
$exchange_id = $_GET['exchange_id'];

//Modify the review status to pass
$sql = "UPDATE exchange SET status = 'Passed' WHERE exchange_id = '$exchange_id'";
mysqli_query($conn, $sql);

//Jump to the audit results page
header("Location: audit_result.php");
exit();
}

//User returns
if(isset($_POST['return'])){
$exchange_id = $_POST['exchange_id'];
$logistics = $_POST['logistics'];

/ /Update return status and logistics information
$sql = "UPDATE exchange SET status = 'Returning', logistics = '$logistics' WHERE exchange_id = '$exchange_id'";
mysqli_query($conn, $sql) ;

//Jump to the return result page
header("Location: return_result.php");
exit();
}

//Merchant confirmation Receive and ship goods
if(isset($_GET['confirm'])){
$exchange_id = $_GET['exchange_id'];
$product_id = $_GET['product_id'];

//Change the review status to Confirm and Ship
$sql = "UPDATE exchange SET status = 'Confirm Shipment' WHERE exchange_id = '$exchange_id'";
mysqli_query($conn , $sql);

//Jump to the delivery result page
header("Location: delivery_result.php");
exit();
}

//Close the database connection
mysqli_close($conn);
?>

4. Summary

By using the PHP developer city system to realize the order product exchange function, It can improve user experience and increase customer stickiness. This article briefly introduces the demand analysis and technical implementation method of the order product exchange function, and provides a simple code example for reference. In the actual development process, appropriate adjustments and expansions need to be made according to specific needs and business processes. Hope this article will be helpful to you.

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