Second-hand recycling website developed using PHP supports product tag search

The second-hand recycling website developed using PHP supports product tag search

With the improvement of people's awareness of environmental protection and changes in lifestyle, more and more people have begun to pay attention to the recycling and reuse of second-hand items. In order to facilitate users to find the second-hand products they need more quickly and accurately, we decided to add a product tag search function to the second-hand recycling website. This function can filter out related second-hand products based on the tag keywords entered by the user.

In PHP, we can achieve this function by using the MySQL database and some simple code. Below, I will introduce you to the specific steps and code examples.

First, we need to create a database table to store second-hand product information. The structure of the table is as follows:

CREATE TABLE `goods` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `description` text NOT NULL,
  `tags` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Next, we need to create a search box on the website for users to enter tag keywords. Users can enter one or more tags in the search box, using spaces as separators. For example, users can enter "mobile phone Apple" to search for related products of second-hand Apple mobile phones.

When processing a search request, we need to segment the tag keywords entered by the user and perform corresponding database queries. The following is a code example for processing a search request:

<?php
// 获取用户输入的标签关键词
$tags = $_GET['tags'];

// 将标签关键词分割成数组
$tagArr = explode(' ', $tags);

// 构建SQL查询语句，使用OR关键词连接多个标签的查询条件
$sql = "SELECT * FROM goods WHERE ";
foreach ($tagArr as $tag) {
  $sql .= "tags LIKE '%" . $tag . "%' OR ";
}
$sql = rtrim($sql, " OR ");

// 执行查询语句
$result = mysqli_query($conn, $sql);

// 输出查询结果
while ($row = mysqli_fetch_assoc($result)) {
  echo "<div>";
  echo "<h3>" . $row['name'] . "</h3>";
  echo "<p>" . $row['description'] . "</p>";
  echo "<p>标签: " . $row['tags'] . "</p>";
  echo "</div>";
}
?>

In the above code, we first obtain the tag keywords entered by the user from $_GET['tags'] and use the explode function to split it into a tag array. Then, by constructing a SQL query statement, each tag is fuzzy matched with the field tags. Finally, the query is executed by using the mysqli_query function, and the query results are output in a loop through the mysqli_fetch_assoc function.

Through the above steps, we can implement the function of supporting product tag search in the second-hand recycling website. Users only need to enter the tag keywords they are interested in in the search box to quickly find related second-hand products.

Of course, in order to improve user experience and search accuracy, we can further improve system performance by adding indexes to the database and optimizing search keywords.

In general, the second-hand recycling website developed using PHP supports product tag search, which can not only meet the personalized needs of users, but also facilitate users to quickly and accurately find the second-hand products they need. Through reasonable database design and simple code implementation, we can provide users with a better user experience. I hope the above content will have certain reference value for developing a second-hand recycling website based on PHP.

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