Second-hand recycling website uses merchant store scoring system developed in PHP

Second-hand recycling website uses merchant store rating system developed in PHP

With the rise of the second-hand economy, more and more people are turning to the second-hand market to buy and sell items. In this process, the ratings of merchant stores have become an important reference indicator for user selection. In order to meet the needs of users, the second-hand recycling website decided to use PHP to develop a merchant store rating system to provide a more accurate and convenient evaluation experience.

The core goal of the merchant store rating system is to provide users with a reliable rating platform so that they can make more informed choices based on the reviews of other users. The system will conduct statistics and analysis based on the user's ratings of the merchant or store, generate a comprehensive rating, and display it on the merchant's store page. At the same time, users can also leave their own comments and evaluations in the system.

In the process of developing merchant store rating system in PHP, we will use MySQL database to store data related to merchants and ratings. Here is some sample code:

1. First, we need to create a database table to store the merchant's information, including merchant ID, merchant name and other fields:

CREATE TABLE IF NOT EXISTS `merchants` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
);

2. Next, we create a database table to store user rating information for merchants, including merchant ID, ratings, comments and other fields:

CREATE TABLE IF NOT EXISTS `ratings` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `merchant_id` int(11) NOT NULL,
  `rating` int(11) NOT NULL,
  `comment` text,
  PRIMARY KEY (`id`),
  FOREIGN KEY (`merchant_id`) REFERENCES `merchants`(`id`)
);

3. On the merchant store page, we need Shows overall ratings and user reviews. In PHP, you can query and display the merchant's rating information through the following code:

<?php
// 连接数据库
$mysqli = new mysqli("localhost", "username", "password", "database");

// 查询商家的评分信息
$result = $mysqli->query("SELECT AVG(rating), COUNT(id) FROM ratings WHERE merchant_id = 1");

// 获取结果
$row = $result->fetch_assoc();

// 输出综合评分和评论数
echo "综合评分：" . $row['AVG(rating)'] . "，评论数：" . $row['COUNT(id)'];

// 关闭数据库连接
$mysqli->close();
?>

Through the above code, we can display the merchant's comprehensive rating and number of reviews on the merchant's store page.

Summary:

The second-hand recycling website uses the merchant store rating system developed in PHP to provide users with a convenient and reliable evaluation platform. By using the MySQL database to store data related to merchants and ratings, and querying and displaying rating information through PHP code, we can meet users' needs for merchant ratings. The implementation of this merchant store rating system will provide users with more accurate reference indicators and help them make smarter consumption decisions.

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