Develop a highly available smart parking system based on Swoole

Develop a highly available smart parking system based on Swoole

Introduction:

With the continuous acceleration of urbanization, the problem of parking difficulties has become more and more prominent. Traditional parking management methods can no longer meet the growing parking demand. Therefore, it is urgent to develop a highly available intelligent parking system. This article will introduce how to develop a highly available smart parking system based on Swoole and provide corresponding code examples.

1. Overview

The intelligent parking system realizes intelligent management of parking lots by using various technical means, such as sensors, cameras, cloud computing, etc. Users can reserve parking spaces, find available parking spaces, pay parking fees, etc. through the mobile APP. As developers, we can use Swoole, a high-performance PHP extension, to implement such a system.

2. Environment preparation

Before starting, please make sure that PHP, Swoole extensions and corresponding dependent extensions have been installed.

3. System Architecture

Our intelligent parking system is mainly divided into three modules: front-end user module, back-end management module and parking lot monitoring module. The front-end user module is responsible for providing user registration, login, parking space reservation and other functions; the back-end management module is used by the parking lot administrator to manage parking space information, charges, etc.; the parking lot monitoring module is used to monitor the status of parking spaces in the parking lot in real time.

4. Framework construction

1. Create the project directory

Execute the following command in the command line:

mkdir smart_parking
cd smart_parking

2. Installation Swoole framework

Execute the following command in the project directory to install the Swoole framework:

composer require swoole/swoole

3. Create the entry file

Create index in the project directory .php file, as the entry file of the entire application, the code is as follows:

<?php

use SwooleHttpServer;
use SwooleHttpRequest;
use SwooleHttpResponse;

$server = new Server('0.0.0.0', 9501);

$server->on('request', function (Request $request, Response $response) {
    $response->header('Content-Type', 'text/plain');
    $response->end('Hello World!');
});

$server->start();

Through the above code, we created an HTTP server that listens at 0.0.0.0:9501 and returns "Hello World" on each request !".

5. Functional realization

In the intelligent parking system, we mainly implement the following functions:

1. User registration and login function
2. Parking spaces Reservation function
3. Parking fee accounting function
4. Parking space monitoring function

Due to space limitations, we only provide basic code examples. The complete code can be found in the project.

1. User registration and login function

...
$server->on('request', function (Request $request, Response $response) {
    $path = $request->server['path_info'];
    if ($path === '/register') {
        // 处理用户注册逻辑
    } elseif ($path === '/login') {
        // 处理用户登录逻辑
    } else {
        $response->header('Content-Type', 'text/plain');
        $response->end('Hello World!');
    }
});
...

2. Parking space reservation function

...
$server->on('request', function (Request $request, Response $response) {
    $path = $request->server['path_info'];
    if ($path === '/reserve') {
        // 处理停车位预订逻辑
    } else {
        $response->header('Content-Type', 'text/plain');
        $response->end('Hello World!');
    }
});
...

3. Parking fee billing function

...
$server->on('request', function (Request $request, Response $response) {
    $path = $request->server['path_info'];
    if ($path === '/calculate_fee') {
        // 处理停车费用计费逻辑
    } else {
        $response->header('Content-Type', 'text/plain');
        $response->end('Hello World!');
    }
});
...

4. Parking space monitoring function

...
$server->on('request', function (Request $request, Response $response) {
    $path = $request->server['path_info'];
    if ($path === '/monitor') {
        // 处理停车位监控逻辑
    } else {
        $response->header('Content-Type', 'text/plain');
        $response->end('Hello World!');
    }
});
...

6. Summary

Through the introduction of this article, we have learned how to develop a high-end system based on Swoole Available smart parking system. Among them, we established a system framework to implement basic functions such as user registration, login, and parking space reservation. Of course, there are more functions in practical applications that we need to continue to improve. I hope that through the guidance of this article, readers can have a deeper understanding of the power of Swoole and be able to apply it to actual projects.

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