How to write a simple website traffic statistics function through PHP

How to write a simple website traffic statistics function through PHP

In today's information society, website traffic is definitely one of the important indicators. Understanding the number of visits to a website can help website administrators understand user behavior and habits and optimize the development of the website. This article will introduce how to write a simple website traffic statistics function through PHP to help website administrators better understand the traffic situation of the website.

First, we need to create a database to store website traffic data. You can use MySQL or other database management systems to create a database named traffic and create a data table named visits.
The following is an example SQL statement:

CREATE DATABASE traffic;
USE traffic;
CREATE TABLE visits (
    id INT PRIMARY KEY AUTO_INCREMENT,
    date DATE,
    visits INT
);

Next, we need to insert the following code at the beginning of the PHP file of each page of the website to implement the website traffic statistics function:

<?php
// 连接数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "traffic";

$conn = new mysqli($servername, $username, $password, $dbname);

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

// 获取当前日期
$date = date("Y-m-d");

// 检查今日是否已经有访问记录
$sql = "SELECT * FROM visits WHERE date = '$date'";
$result = $conn->query($sql);

// 如果今日已经有访问记录，则增加访问量
if ($result->num_rows > 0) {
    $row = $result->fetch_assoc();
    $visits = $row["visits"] + 1;
    $sql = "UPDATE visits SET visits = $visits WHERE date = '$date'";
    $conn->query($sql);
} else {
    // 如果今日没有访问记录，则创建新的访问记录并将访问量设置为1
    $sql = "INSERT INTO visits (date, visits) VALUES ('$date', 1)";
    $conn->query($sql);
}

// 关闭数据库连接
$conn->close();
?>

In the above code, first we connect to the database. You need to replace your_username and your_password with your own database username and password. Then, by getting the current date, we can check if there is already an access record today. If there is, increase the number of visits; if not, create a new visit record and set the number of visits to 1.

Finally, we can add the following code where we need to display website visits:

<?php
// 连接数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "traffic";

$conn = new mysqli($servername, $username, $password, $dbname);

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

// 获取总访问量
$sql = "SELECT SUM(visits) AS totalVisits FROM visits";
$result = $conn->query($sql);
$row = $result->fetch_assoc();
$totalVisits = $row["totalVisits"];

// 关闭数据库连接
$conn->close();
?>

<p>网站总访问量：<?php echo $totalVisits; ?>次</p>

With the above code, we can get the total visits from the database and display it on the web page superior.

Through the above steps, we have implemented a simple website traffic statistics function. Through this function, we can better understand the traffic situation of the website and make appropriate adjustments and optimizations for the development of the website. Of course, this is just a simple example. In practice, other factors may need to be considered, such as data security and performance optimization. But through this example, we can have a basic understanding of how to write a simple website traffic statistics function through PHP.

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