Implementation method of product brand catalog display function in PHP developer city-PHP Tutorial-php.cn

Implementation method of product brand catalog display function in PHP developer city

王林

Release： 2023-06-29 11:54:01

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How to implement the product brand catalog display function in PHP Developer City

With the rapid development of e-commerce, more and more people choose to shop online. As one of the core functions of an online mall, the display of product brand catalogs plays a vital role in the mall's user experience and product sales. This article will introduce how to use PHP to develop and implement the product brand catalog display function in the mall.

1. Database design
Before realizing the display function of the product brand catalog, it is first necessary to design a database to store relevant data. You can create a data table named "brand", containing the following fields:

id: brand ID, primary key, auto-increment
name: brand name
logo: The path of the brand logo

2. Page layout
In order to realize the display function of the product brand catalog, you need to first create a page to display the brand catalog. You can create a file named "brand_list.php" and write the following HTML code:

<!DOCTYPE html>
<html>
<head>
    <title>商品品牌目录展示</title>
</head>
<body>
    <h1>商品品牌目录</h1>
    <ul>
        <?php
        // 在这里编写PHP代码，用于动态生成品牌目录
        ?>
    </ul>
</body>
</html>

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3. PHP code implementation

Connect to the database
First , to connect to the database in PHP code, you can use the functions provided by the mysqli extension. Write the following PHP code:

<?php
$host = "localhost"; // 数据库主机地址
$username = "root"; // 数据库用户名
$password = "password"; // 数据库密码
$dbname = "mall"; // 数据库名

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

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

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Query Data
Next, write the code to query the database and obtain the brand data. According to the table structure designed in the database, you can use the SQL statement "SELECT * FROM brand" to query all brand data. Write the following PHP code:

<?php
// 查询品牌数据
$sql = "SELECT * FROM brand";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
 // 遍历查询结果，生成品牌目录
 while ($row = $result->fetch_assoc()) {
     echo "<li><a href='#'>" . $row['name'] . "</a></li>";
 }
} else {
 echo "暂无品牌数据";
}

// 关闭数据库连接
$conn->close();
?>

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Modify the HTML code
Finally, insert the PHP code that generates the brand catalog into the HTML code. Insert the following code into the corresponding location in the "brand_list.php" file:
```
<?php
// 查询品牌数据
// ...

if ($result->num_rows > 0) {
 // ... 遍历查询结果，生成品牌目录
 // ...
} else {
 echo "暂无品牌数据";
}

// 关闭数据库连接
// ...
?>
```
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4. Run the test
Open the "brand_list.php" page in the browser. See the brand directory generated based on the brand data in the database.

Summary:
Through the above steps, we can use PHP to develop and implement the product brand catalog display function in the mall. First, a database needs to be designed to store brand data. Then, place the corresponding HTML code in the page. Finally, use PHP code to connect to the database and obtain brand data, and dynamically generate a brand directory by traversing the query results. Through this implementation method, users can easily browse and select the product brands they are interested in, improving the user experience and sales effect of the mall.
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