Workerman 是一个高性能的PHP socket 服务器框架,workerman基于PHP多进程以及libevent事件轮询库,PHP开发者只要实现一两个接口,便可以开发出自己的网络应用,例如Rpc服务、聊天室服务器、游戏服务器等。
Workerman 的目标是让PHP开发者更容易的开发出基于socket的高性能的应用服务,而不用去了解PHP socket以及PHP多进程细节。 workerman本身是一个PHP多进程服务器框架,具有PHP进程管理以及socket通信的模块,所以不依赖php-fpm、nginx或者apache等这些容器便可以独立运行。
特性
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使用PHP开发
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支持PHP多进程
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支持TCP/UDP
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接口上支持各种应用层协议
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支持libevent事件轮询库,支持高并发
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支持服务平滑重启
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支持PHP文件更新检测及自动加载
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支持PHP长连接
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支持以指定用户运行子进程
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支持telnet远程控制
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高性能
基于workerman已经有很多的网络应用程序,例例如 多人在线小蝌蚪游戏 、 PHP-Json-Rpc 、 PHP-Thrift-Rpc 、 PHP-WebSocket聊天室 、 PHP统计监控系统 等等。
示例代码:
<?phpuse Workerman\Worker;require_once './Workerman/Autoloader.php';// 创建一个Worker监听2346端口,使用websocket协议通讯$ws_worker = new Worker("websocket://0.0.0.0:2346");// 启动4个进程对外提供服务$ws_worker->count = 4;// 当收到客户端发来的数据后返回hello $data给客户端$ws_worker->onMessage = function($connection, $data){ // 向客户端发送hello $data $connection->send('hello ' . $data);};// 运行Worker::runAll();
性能压力测试
测试环境:
系统:ubuntu 12.04 LTS 64位内存:8Gcpu:Intel® Core™ i3-3220 CPU @ 3.30GHz × 4
业务逻辑:
hello world
结果:
短链接(每次请求完成后关闭链接,下次请求建立新的链接):条件: 压测脚本开500个线程,每个线程链接Workerman 10W次,每次链接发送1个请求结果: 吞吐量:3W/S , cpu:60% , 内存占用:4*8M = 32M
长链接(每次请求后不关闭链接,下次请求继续复用这个链接):条件: 压测脚本开1000个线程,每个线程链接Workerman 1次,每个链接发送10W请求结果: 吞吐量:13W/S , cpu:68% , 内存占用:4*8M = 32M
无流量抖动,无内存泄漏,性能非常强悍
workerman启动界面:
workerman状态查看界面:

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.

PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.


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