Build a high-performance online questionnaire survey system using Workerman

Use Workerman to build a high-performance online questionnaire survey system

Introduction:
With the development and popularization of the Internet, questionnaire surveys have become a common data Collection and market research tools. Traditional face-to-face questionnaires are time-consuming and labor-intensive, while online questionnaires can improve efficiency and accuracy. This article will introduce how to use PHP's network programming framework Workerman to build a high-performance online questionnaire system.

1. Introduction to Workerman
Workerman is a high-performance, multi-process, event-driven network programming framework based on PHP. It is able to handle a large number of concurrent requests and maintain high server stability. Compared with the traditional PHP Apache or Nginx HTTP mode, Workerman has lower latency and stronger scalability.

2. Requirements Analysis
When designing the questionnaire survey system, we need to consider the following requirements:
1. User registration and login: Users can use the questionnaire system by registering and logging in.
2. Create questionnaire: Users can create their own questionnaires, including questions, options and settings.
3. Questionnaire filling: Registered users can fill in the questionnaire and submit answers.
4. Data analysis: The system can analyze and count the collected data and provide visual results.

3. System architecture design
1. Server architecture
The server uses Workerman as the network communication framework and MySQL as the database to store data. The server is responsible for processing user requests, questionnaire management and data analysis.

2. Client architecture
The client can be a Web interface, and users can access the system through a browser to register, log in, create and fill out questionnaires.

4. Code Example
The following is a simple Workerman example that demonstrates how to use Workerman to build a server that receives client data.

onConnect = function($connection)
{
    echo "New connection
";
};

$worker->onMessage = function($connection, $data)
{
    echo "Received data: $data
";
};

$worker->onClose = function($connection)
{
    echo "Connection closed
";
};

Worker::runAll();

The above code creates a TCP service listening on port 5678. When a new connection is connected, "New connection" will be output; when data sent by the client is received, "Received data: " plus the received data will be output; when the connection is closed, "Connection closed" will be output .

5. Summary
This article introduces how to use Workerman to build a high-performance online questionnaire survey system. By using Workerman's multi-process model and event-driven mechanism, the system is able to handle a large number of concurrent requests. Developers can expand and optimize functions according to specific needs to make the system more powerful, stable and efficient.

Reference source:

1. Workerman official document: http://www.workerman.net/
2. PHP questionnaire system open source project: https://github .com/whyliam/PHP-Quiz-System

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