Second-hand recycling website uses professional identification and detection functions developed in PHP

Second-hand recycling website uses professional identification and detection functions developed in PHP

In recent years, with the booming development of the second-hand market, second-hand goods trading has become the choice of many people. However, before purchasing second-hand goods, it is often necessary to authenticate and inspect the goods to ensure their quality and authenticity. In order to solve this problem, many second-hand recycling websites have begun to use professional identification and detection functions developed in PHP.

In order to give readers a better understanding, I will take a virtual second-hand recycling website as an example to demonstrate how to use PHP to develop professional identification and detection functions.

1. Design database

First, we need to design a database to store the user's product information and identification results. Create a database named "products", which contains the following table:

• id: the unique identifier of the product, as the primary key
• name: the name of the product
• description: Description of the product
• image: Image address of the product
• condition: Condition of use of the product
• verdict: Appraisal result

2. Create a webpage

Create a file named "index.php" as the homepage of the website. In this file, we will display all second-hand products and provide identification and testing functions.

2.1 Display product list

Using PHP and MySQL query statements, we can obtain all product information from the database and display it on the web page. The following is a code example:

<?php
// 连接数据库
$conn = new mysqli('localhost', 'username', 'password', 'products');

// 查询商品列表
$result = $conn->query("SELECT * FROM products");

// 遍历商品列表并展示
while ($row = $result->fetch_assoc()) {
    echo '<div class="product">';
    echo '<h2>' . $row['name'] . '</h2>';
    echo '<p>' . $row['description'] . '</p>';
    echo '<img src="' . $row['image'] . '" alt="product image">';
    echo '<p>使用状况：' . $row['condition'] . '</p>';
    echo '<p>鉴定结果：' . $row['verdict'] . '</p>';
    echo '</div>';
}

// 关闭数据库连接
$conn->close();
?>

2.2 Provide identification and testing function

On the web page, we add a form that allows users to perform identification and testing of the product before purchasing. The following is a code example:

<form action="check.php" method="post">
    <label for="product_id">商品ID：</label>
    <input type="text" name="product_id" required>
    <button type="submit">鉴定检测</button>
</form>

3. Handling authentication check requests

Create a file named "check.php" for processing authentication check requests. In this file, we will perform identification testing based on the product ID provided by the user and save the results to the database. The following is a code example:

<?php
// 连接数据库
$conn = new mysqli('localhost', 'username', 'password', 'products');

// 获取商品ID
$product_id = $_POST['product_id'];

// 进行鉴定检测...
$verdict = "真品"; // 假设鉴定结果为真品

// 更新数据库中的鉴定结果
$conn->query("UPDATE products SET verdict = '$verdict' WHERE id='$product_id'");

// 关闭数据库连接
$conn->close();

// 返回主页
header("Location: index.php");
?>

Through the above code example, we can see that using the professional identification and detection function developed in PHP can realize the identification and detection of goods on second-hand recycling websites, ensuring that users are safe when purchasing second-hand goods. Peace of mind and peace of mind.

Summary:

With the continuous development of the second-hand recycling market, the professional identification and detection function developed by second-hand recycling websites using PHP has become an important means to attract users and ensure transaction security. We can easily implement such functionality by designing databases, creating web pages, and handling authentication detection requests. I hope this article can help readers better understand and use PHP to develop professional identification and detection functions.

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