Second-hand recycling website developed using PHP supports multi-warehouse management

The second-hand recycling website developed using PHP supports multi-warehouse management

With the progress of society and the enhancement of environmental awareness, second-hand recycling has gradually become an important part of people's lives. In order to better manage and operate a second-hand recycling website, it is very important to develop a website that supports multi-warehouse management. This article will introduce how to use PHP to develop a second-hand recycling website, support multi-warehouse management, and provide code examples.

First of all, we need to design the database structure to support multi-warehouse management. The following is a simplified database structure example, including three main tables: users, items, and warehouses.

User table (users):

ID	Username	Password	Warehouse ID
1	user1	1234	1
2	user2	5678	2

Item list (items):

# #2Item230102

ID	Name	Price	Quantity	Warehouse ID
1	Item 1	20	5	1

warehouses ):

IDNameAddress 1Warehouse 1Address 12Warehouse 2Address 2Next, we can start writing PHP code. First, we need to establish a database connection, that is, create a PHP file connected to the MySQL database.

// db_connect.php
<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "database";

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

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

Next, we can write a PHP file to obtain the data of all warehouses and return it to the front end in JSON format.

// get_warehouses.php
<?php
include "db_connect.php";

$sql = "SELECT * FROM warehouses";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    $warehouses = array();
    while ($row = $result->fetch_assoc()) {
        $warehouses[] = array(
            "id" => $row["ID"],
            "name" => $row["名称"],
            "address" => $row["地址"]
        );
    }
    echo json_encode($warehouses);
} else {
    echo "没有找到仓库数据";
}

$conn->close();
?>

Then, we can write a PHP file to obtain the item data of the specified warehouse ID and return it to the front end in JSON format.

// get_items.php
<?php
include "db_connect.php";

$warehouseId = $_GET["warehouseId"];

$sql = "SELECT * FROM items WHERE 仓库ID = $warehouseId";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    $items = array();
    while ($row = $result->fetch_assoc()) {
        $items[] = array(
            "id" => $row["ID"],
            "name" => $row["名称"],
            "price" => $row["价格"],
            "quantity" => $row["数量"]
        );
    }
    echo json_encode($items);
} else {
    echo "没有找到物品数据";
}

$conn->close();
?>

Finally, we can write a PHP file to handle user login and return the corresponding warehouse data.

// login.php
<?php
include "db_connect.php";

$username = $_POST["username"];
$password = $_POST["password"];

$sql = "SELECT * FROM users WHERE 用户名 = '$username' AND 密码 = '$password'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    $row = $result->fetch_assoc();
    $warehouseId = $row["仓库ID"];
    header("Location: items.php?warehouseId=$warehouseId");
} else {
    echo "用户名或密码错误";
}

$conn->close();
?>

The above is a simple PHP development example of multi-warehouse management for a second-hand recycling website. By designing a reasonable database structure and writing corresponding PHP code, we can implement a second-hand recycling website that supports multi-warehouse management. Of course, more features and security considerations may need to be added in actual development, but the sample code provided in this article can serve as a good starting point.

To summarize, it is completely feasible for a second-hand recycling website developed using PHP to support multi-warehouse management. Through reasonable database design and writing corresponding PHP code, we can realize functions such as management and display of warehouses and items. We hope that the sample code in this article can be helpful to developers and promote the development and promotion of second-hand recycling websites.

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