The latest changes in Discuz online number adjustment-PHP Tutorial-php.cn

The latest changes in Discuz online number adjustment

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Release： 2024-03-09 22:32:02

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Discuz 在线人数调整的最新变化

Discuz is a well-known forum program, and counting online people has always been one of its important functions. Website administrators can understand the activity of the website through online population statistics and adjust the website's operation strategy in a timely manner. Recently, there have been new changes in Discuz's online population counting function, which requires website administrators to make code adjustments according to the latest requirements to ensure the accuracy and real-time nature of online population statistics.

Discuz The latest changes in the statistics of online people mainly involve the following aspects: first, the adjustment of the storage method of the number of people online, the second, the change in the triggering mechanism of the statistics of online people, and the third, the adjustment of the display position of the number of people online. Next, these changes will be introduced respectively, and specific code examples will be given.

1. Adjustment of the storage method of online people

In the past, Discuz online people statistics were usually implemented by updating the online number field in the database. But as website traffic increases, frequently updating database fields may have an impact on database performance. Therefore, the latest change is to store the statistics of online people in the Redis cache, and use the cache to count and update the number of people online.

The following is a sample code that demonstrates how to store the number of online people in the Redis cache:

// 连接 Redis 服务器
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

// 获取当前在线人数
$online_count = $redis->get('online_count');

// 更新在线人数
$online_count++;
$redis->set('online_count', $online_count);

// 获取在线人数
echo '当前在线人数：' . $online_count;

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The above code demonstrates how to store the number of online people through the Redis cache and implement the update and update of the number of people online. show. The website administrator can make corresponding modifications and adjustments in the relevant files of Discuz according to the actual situation.

2. Changes in the triggering mechanism of online people statistics

In addition to the adjustment of the storage method, the triggering mechanism of Discuz online people statistics has also undergone some changes. In the past, online population statistics were triggered every time a user visited a page, but this method may have a certain delay and could not achieve real-time statistics. The latest change is the use of WebSocket technology to update the number of people online in real time asynchronously.

The following is a simple WebSocket sample code that demonstrates how to update the number of people online in real time through WebSocket technology:

// 建立 WebSocket 连接
var ws = new WebSocket('ws://your_server_address');

ws.onopen = function() {
  console.log('WebSocket 连接成功');
};

ws.onmessage = function(event) {
  var data = JSON.parse(event.data);
  console.log('当前在线人数：' + data.online_count);
};

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Through WebSocket technology, the website can obtain changes in the number of people online in real time to ensure statistics of the number of people online. accuracy and real-time. Website administrators can add and modify the corresponding code in Discuz's related files as needed.

3. Adjustment of the display position of the number of people online

In addition to the changes in storage and statistics, the position of the display of the number of people online in Discuz has also been adjusted. In the past, the number of people online was usually displayed at the bottom of the page or in the sidebar, but in the latest design, it is recommended to display the number of people online at the top of the page to increase the user's attention and the interactivity of the page.

The following is a simple HTML/CSS sample code that demonstrates how to display the number of online people at the top of the page:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>在线人数统计</title>
  <style>
    .online-count {
      position: fixed;
      top: 0;
      left: 0;
      background: #333;
      color: #fff;
      padding: 10px;
    }
  </style>
</head>
<body>
  <div class="online-count">当前在线人数：100</div>
</body>
</html>

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Through the above adjustments and changes, Discuz’s online people counting function has been more improved. and real-time updates. Website administrators can make corresponding code adjustments and modifications according to the latest requirements to ensure the accuracy and real-time nature of online population statistics. Through the reasonable use of code examples and techniques, we can better optimize the user experience and data statistics functions of the website.

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