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PHP Development Guide: How to implement real-time website visitor statistics

WBOYOriginal: 2023-08-25 20:37:051639browse

Introduction:
In today’s Internet era, website traffic statistics are crucial to website operation and optimization . Real-time visitor statistics are a means of instantly understanding website visitors. This article will introduce how to use PHP to develop a simple real-time website visitor statistics system to provide more comprehensive data support for website operations.

1. Preparation:

PHP environment: Make sure your server has installed and turned on PHP, version 5.4 or above;
Database: We will use MySQL database to store visitor information;
HTML and CSS basic knowledge.

2. Database design:
We need to create a data table named "visitors" to store real-time visitor information. The table structure is as follows:

CREATE TABLE visitors (
    id INT PRIMARY KEY AUTO_INCREMENT,
    ip VARCHAR(45) NOT NULL,
    time DATETIME NOT NULL
);

3. Create a web page file:

Create a file named "index.php" to display the main page of the website;
Create a file named "visitor.php" to record and display real-time visitor information.

4. Main page design:
The following is a simple main page design example:

<!DOCTYPE html>
<html>
<head>
    <title>网站实时访客统计</title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
    <h1>欢迎访问网站！</h1>
    
    <div class="visitor-info">
        <p>当前在线人数：<span id="online-count"></span></p>
    </div>
    
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
    <script src="visitor.js"></script>
</body>
</html>

This page mainly contains an element that displays the number of people currently online, which is used to After the page is loaded, obtain the real-time number of visitors through an AJAX request.

5. Write JavaScript code:
In the "visitor.js" file, write the following JavaScript code:

$(document).ready(function() {
    setInterval(updateVisitors, 1000);
});

function updateVisitors() {
    $.ajax({
        url: 'visitor.php',
        type: 'post',
        data: {'action': 'count'},
        success: function(response) {
            $('#online-count').text(response);
        }
    });
}

This code snippet will write to "visitor.php every 1 second "Send an AJAX request to get real-time visitor counts and update the page with the results.

6. Write PHP code:
In the "visitor.php" file, write the following PHP code:

<?php
// 连接数据库
$conn = new mysqli('数据库主机名', '用户名', '密码', '数据库名');

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 获取请求类型
$action = $_POST['action'];

if ($action == 'count') {
    // 获取实时访客数量
    $result = $conn->query("SELECT COUNT(*) as count FROM visitors");
    $row = $result->fetch_assoc();
    echo $row['count'];
} elseif ($action == 'record') {
    // 记录访客信息
    $ip = $_SERVER['REMOTE_ADDR'];
    $time = date('Y-m-d H:i:s');
    
    $stmt = $conn->prepare("INSERT INTO visitors (ip, time) VALUES (?, ?)");
    $stmt->bind_param("ss", $ip, $time);
    
    if ($stmt->execute()) {
        echo '记录成功';
    } else {
        echo '记录失败';
    }
}

// 关闭数据库连接
$conn->close();
?>

This code snippet performs different operations based on the request type. If the request type is "count", the real-time number of visitors is returned; if the request type is "record", the current visitor's IP address and timestamp are recorded.

7. Write CSS styles:
In the "style.css" file, write the following CSS styles:

h1 {
    text-align: center;
}

.visitor-info {
    text-align: center;
    margin-top: 50px;
    font-size: 18px;
}

This style is mainly used to beautify the display effect of the page.

8. Deployment and testing:

Upload all files to the root directory of your website;
Visit your website on the main page, you will You can see that the number of people currently online is updated every second.

Conclusion:
Through the introduction of this article, we have learned how to use PHP to develop a simple real-time website visitor statistics system. Real-time visitor statistics can provide real-time and useful data for website operations to optimize the website's user experience and marketing strategies. I hope this article can inspire you, and I wish you success in website development and operation!

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