Second-hand recycling website developed using PHP supports contraband monitoring

Use PHP to develop a second-hand recycling website to support contraband monitoring

With the development of society and the improvement of people's awareness of environmental protection, the second-hand recycling industry has received more and more attention and support. However, due to the particularity of second-hand recycling, there are certain risks and problems, one of which is the presence of contraband. In order to protect the rights and safety of users, we can use PHP to develop a second-hand recycling website and support contraband monitoring functions.

In the second-hand recycling website, we can use PHP to write a backend management system for the administrator's operation and management. Administrators can review, filter and monitor second-hand products posted by users through this system.

First, we need to build a database to store second-hand product information posted by users. You can create a table named "products" with the following fields:

CREATE TABLE products (
    id INT(11) AUTO_INCREMENT PRIMARY KEY,
    title VARCHAR(255) NOT NULL,
    description TEXT NOT NULL,
    price DECIMAL(10, 2) NOT NULL,
    user_id INT(11) NOT NULL
);

Among them, title represents the product title, description represents the product description, price represents the product price, and user_id represents the user ID of the publisher.

Next, we can add a contraband management page in the background management system. Administrators can add and edit the names and keywords of contraband on this page. We can create a table named "forbidden_items" to store contraband information, including the following fields:

CREATE TABLE forbidden_items (
    id INT(11) AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    keywords TEXT NOT NULL
);

In the contraband management page of the backend management system, you can add, edit, and Delete function. When the administrator adds or edits contraband, we can use the following PHP code to save the contraband information into the database:

<?php
    $name = $_POST['name'];
    $keywords = $_POST['keywords'];
    
    // 在数据库中插入违禁品信息
    $stmt = $pdo->prepare("INSERT INTO forbidden_items (name, keywords) VALUES (?, ?)");
    $stmt->bindParam(1, $name);
    $stmt->bindParam(2, $keywords);
    $stmt->execute();
?>

At the same time, we also need to use PHP to write a check function to check whether the product contains Contraband keywords. The following is a simple example:

<?php
    function checkForbiddenItems($description) {
        $forbiddenItems = $pdo->query("SELECT keywords FROM forbidden_items")->fetchAll(PDO::FETCH_ASSOC);
        
        foreach ($forbiddenItems as $item) {
            if (strpos($description, $item['keywords']) !== false) {
                return true;
            }
        }
        
        return false;
    }
?>

When users post second-hand products, we can check contraband keywords in the background:

<?php
    $description = $_POST['description'];
    if (checkForbiddenItems($description)) {
        // 商品包含违禁品关键词，进行相应处理（如拒绝发布）
    } else {
        // 商品正常发布
    }
?>

Through the above code example, we can implement an exploit A second-hand recycling website developed in PHP and supports the monitoring function of contraband. Administrators can manage contraband through the backend management system, and the system can automatically check whether second-hand products posted by users contain contraband keywords to protect the rights and safety of users. At the same time, this also provides certain guarantee and support for the development of the second-hand recycling industry.

The above is the detailed content of Second-hand recycling website developed using PHP supports contraband monitoring. For more information, please follow other related articles on the PHP Chinese website!