PHP development: How to implement automatic recommendation and display functions of friendly links

PHP Development: How to implement the automatic recommendation and display function of friendly links

Friendly links are a common method of cooperative promotion in websites. By displaying links to each other, the website can be increased Traffic and user visits. In website development, the automatic recommendation and display functions of friendly links can provide convenience for website operation. This article will introduce how to use PHP to develop automatic recommendation and display functions of friendly links, and provide specific code examples.

1. Database design and table structure
First, we need to create a friendly link table in the database to store information about friendly links. The following is an example SQL statement to create a friendly link table:

CREATE TABLE `friendship_links` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL COMMENT '链接名称',
  `url` varchar(255) NOT NULL COMMENT '链接地址',
  `logo` varchar(255) NOT NULL COMMENT '链接Logo',
  `sort` tinyint(4) NOT NULL DEFAULT '0' COMMENT '排序',
  `status` tinyint(1) NOT NULL DEFAULT '1' COMMENT '状态，0：隐藏，1：正常',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='友情链接表';

2. Implementation of the automatic recommendation function of friendly links
The implementation of the automatic recommendation function of friendly links depends on certain rules, such as based on the number of visits to the website, friendship Recommended based on the number of clicks on the link. Here we assume that the recommendation rule is: sort the friendly links according to the number of clicks, and select the link with the highest number of clicks for recommendation. The following is a sample code:

function getRecommendedLinks($limit = 5) {
   $sql = "SELECT * FROM friendship_links WHERE status = 1 ORDER BY clicks DESC LIMIT $limit";
   // 执行SQL语句，获取推荐的友情链接
   // ...
   return $recommendedLinks;
}

// 调用函数获取推荐的友情链接
$recommendedLinks = getRecommendedLinks();

3. Implementation of Friendly Link Display Function
The friendly link display function is to read the friendly link information in the database from the background and display it in the foreground. The following is a sample code:

function displayFriendshipLinks($limit = 10) {
   $sql = "SELECT * FROM friendship_links WHERE status = 1 ORDER BY sort ASC LIMIT $limit";
   // 执行SQL语句，获取友情链接
   // ...
   foreach ($friendshipLinks as $link) {
      echo '<a href="' . $link['url'] . '"><img  src="' . $link['logo'] . '" alt="PHP development: How to implement automatic recommendation and display functions of friendly links" ></a>';
   }
}

// 调用函数展示友情链接
displayFriendshipLinks();

In the above sample code, we use SQL statements to query the friendly link information from the database, and sort and display it according to the corresponding rules. You can make corresponding modifications and extensions according to actual needs.

Summary
Through PHP development, we can easily realize the automatic recommendation and display functions of friendly links. In practical applications, functions can be modified and expanded according to business needs, such as adding review and management functions for friendly links. I hope this article will help you understand and use the friendly link function.

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