How to use PHP to implement the brand search function of the mall

In recent years, with the rapid development of the Internet, the rise of the e-commerce industry has become a mainstream trend in modern business. The most representative business type among them is the "shopping mall", represented by Taobao, JD.com, etc. The business of these platforms involves personnel, inventory, orders, logistics and other aspects. Among them, the search function is crucial to the survival and development of shopping malls. In shopping malls, brand search is one of the most commonly used search methods by users. This article will focus on PHP and introduce how to use PHP to implement the brand search function of the mall.

1. How to establish the mall brand search function

To establish the mall brand search function, you first need to create a brand data table in the database. The brand data table needs to have fields such as brand name, brand ID, brand introduction, etc., as shown below:

CREATE TABLE brand (

id INT(11) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(50) NOT NULL,
intro TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

);

2. How to search the mall Brand

1. The first step is to create a search form
   In the search page, you need to create a search form, the code is as follows:

<form action="search .php" method="get">

<input type="text" name="brand" placeholder="请输入品牌名称">
<button type="submit">搜索</button>

</form>

2. The second step is to process the search request

When the user enters After the brand name is entered and the search form is submitted, the program needs to obtain the brand name entered by the user and match it with the brand data in the database, obtain the results and return them to the user. The code is as follows:

<?php
// 1. Get the brand name entered by the user
$brand_name = $_GET['brand'];

// 2. Connect to the database
$conn = mysqli_connect('localhost', 'root', '', 'mall');

// 3. Set the database encoding format
mysqli_set_charset($conn, 'utf8 ');

// 4. Query the database
$sql = "SELECT * FROM brand WHERE name LIKE '%$brand_name%'";
$result = mysqli_query($conn, $sql );

// 5. Process search results
if (mysqli_num_rows($result) > 0) {

while ($row = mysqli_fetch_assoc($result)) {
    echo "品牌名称：" . $row['name'] . "<br>";
    echo "品牌介绍：" . $row['intro'] . "<br>";
}

} else {

echo "未找到匹配的品牌！";

}

// 6. Close the database connection
mysqli_close($conn);
?>

3. Optimize the mall brand search function

In actual use, The search function may encounter situations where the brand name entered by the user is not exactly the same as the brand name in the database. For example, the user enters "Apple" and the brand name stored in the database is "Apple". In this case, it is necessary to optimize the brand search function and improve the accuracy and flexibility of search.

1. Split brand name

When processing a search request, the brand name entered by the user needs to be split. For example, split "apple" into "apple" and "fruit", and match them with the brand names in the database respectively. If they match, it is considered a matching result. The code is as follows:

<?php
// Split the brand name
$search_words = explode('', $brand_name);

// Build query conditions
$sql_where = '';
foreach ($search_words as $word) {

$sql_where .= "AND name LIKE '%$word%'";

}
$sql_where = ltrim($sql_where, 'AND');

/ /Query database
$sql = "SELECT * FROM brand WHERE $sql_where";
?>

2. Use full-text search

Full-text search is a A quick way to retrieve textual information that improves search accuracy and performance. In MySQL, a full-text search function is provided to index and search text by using MySQL's full-text search engine MyISAM. To use MySQL's full-text search, you need to set the table engine to MyISAM and add a full-text index. The code is as follows:

<?php
// Set the brand table engine to MyISAM
$sql = "ALTER TABLE brand ENGINE = MyISAM";
mysqli_query($conn, $sql );

//Add full-text index
$sql = "ALTER TABLE brand ADD FULLTEXT(name)";
mysqli_query($conn, $sql);

// Query the database
$sql = "SELECT * FROM brand WHERE MATCH (name) AGAINST ('$brand_name' IN BOOLEAN MODE);
?>

Summary

The main content of this article It introduces how to use PHP to implement the brand search function of the mall. In actual use, the search function also needs to be optimized according to specific business needs to improve the accuracy and performance of the search. If you are learning PHP or e-commerce development, I hope this article It will be helpful to you.

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