[Swoole] 在Ubuntu下安装、快速开始
- 2019 年 10 月 13 日
- 筆記
本文主要讲述在 Ubuntu 下编译安装 Swoole，并根据官方文档给出的demo进行了测试和搬运，包括：TCP服务器、UDP服务器、HTTP服务器、WebSocket服务器、异步客户端、定时器和协程相关，通过模仿官方例子领略Swoole给PHPer带来全新的编程模式和思想。
它弥补PHP在网络编程的不足。
一、说明
运行环境：
win10下的Ubuntu、PHP7.2、Swoole4.3
二、安装Swoole
- 下载解压
sudo wget https://github.com/swoole/swoole-src/archive/v4.3.6.tar.gz cp v4.3.6.tar.gz swoole-v4.3.6.tar.gz tar -zxvf swoole-v4.3.6.tar.gz cd swoole-v4.3.6- 安装依赖
# 根据下面的编译提示进行选择安装 sudo apt-get install php-dev sudo apt-get install autoconf- 编译安装
# 根据自己 php 安装的目录 cd swoole-v4.3.6 /usr/local/php/bin/phpize ./configure make sudo make installmake 的结果:
... ---------------------------------------------------------------------- Libraries have been installed in: /home/fly/swoole-src-4.3.6/modules If you ever happen to want to link against installed libraries in a given directory, LIBDIR, you must either use libtool, and specify the full pathname of the library, or use the `-LLIBDIR' flag during linking and do at least one of the following: - add LIBDIR to the `LD_LIBRARY_PATH' environment variable during execution - add LIBDIR to the `LD_RUN_PATH' environment variable during linking - use the `-Wl,--rpath -Wl,LIBDIR' linker flag - have your system administrator add LIBDIR to `/etc/ld.so.conf' See any operating system documentation about shared libraries for more information, such as the ld(1) and ld.so(8) manual pages. ---------------------------------------------------------------------- Build complete. Don't forget to run 'make test'.sudo make install 的结果:
Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/ Installing header files: /usr/local/php/include/php/- 配置 php.ini
# 编译安装成功后，在 php.ini 文件加入 extension=swoole.so # extension=/usr/lib/php/20170718/swoole.so查看是否加载 swoole 扩展
php -m- 错误排查（可忽略）
下面错误很明显，需要指定 php-conf 路径：
configure: error: Cannot find php-config. Please use –with-php-config=PATH
解决方法：
./configure –with-php-config=/usr/local/php/bin/php-config
三、快速入门
a) TCP 服务器
# 创建 php 文件 vi tcp_server.php<?php //创建Server对象，监听 127.0.0.1:9501端口 $serv = new SwooleServer("127.0.0.1", 9501); //监听连接进入事件 $serv->on('Connect', function ($serv, $fd) { echo "Client: Connect.n"; }); //监听数据接收事件 $serv->on('Receive', function ($serv, $fd, $from_id, $data) { $serv->send($fd, "Server: ".$data); }); //监听连接关闭事件 $serv->on('Close', function ($serv, $fd) { echo "Client: Close.n"; }); //启动服务器 $serv->start(); # 程序运行测试 # 运行 server php tcp_server.php # 使用telnet 测试（退出telnet：Ctrl+] 回车，输入quit 回车） telnet 127.0.0.1 9501b) UDP 服务器
vi udp_server.php<?php //创建Server对象，监听 127.0.0.1:9502端口，类型为SWOOLE_SOCK_UDP $serv = new swoole_server("127.0.0.1", 9502, SWOOLE_PROCESS, SWOOLE_SOCK_UDP); //监听数据接收事件 $serv->on('Packet', function ($serv, $data, $clientInfo) { $serv->sendto($clientInfo['address'], $clientInfo['port'], "Server ".$data); var_dump($clientInfo); }); //启动服务器 $serv->start(); # 运行 php udp_server.php # 使用 netcat 连接 netcat -u 127.0.0.1 9502c) HTTP 服务器
vi http_server.php<?php $http = new SwooleHttpServer("0.0.0.0", 9501); $http->on('request', function ($request, $response) { if ($request->server['path_info'] == '/favicon.ico' || $request->server['request_uri'] == '/favicon.ico') { return $response->end(); } var_dump($request->get, $request->post); $response->header("Content-Type", "text/html; charset=utf-8"); $response->end("<h1>Hello Swoole. #".rand(1000, 9999)."</h1>"); }); $http->start();# 程序运行测试 php http_server.php # 浏览器访问 127.0.0.1:9501d) WebSocket 服务器
WebSocket服务器是建立在Http服务器之上的长连接服务器，客户端首先会发送一个Http的请求与服务器进行握手。握手成功后会触发onOpen事件，表示连接已就绪，onOpen函数中可以得到$request对象，包含了Http握手的相关信息，如GET参数、Cookie、Http头信息等。
建立连接后客户端与服务器端就可以双向通信了。
vi ws_server.php<?php //创建websocket服务器对象，监听0.0.0.0:9502端口 $ws = new swoole_websocket_server("0.0.0.0", 9502); //监听WebSocket连接打开事件 $ws->on('open', function ($ws, $request) { var_dump($request->fd, $request->get, $request->server); $ws->push($request->fd, "hello, welcomen"); }); //监听WebSocket消息事件 $ws->on('message', function ($ws, $frame) { echo "Message: {$frame->data}n"; $ws->push($frame->fd, "server: {$frame->data}"); }); //监听WebSocket连接关闭事件 $ws->on('close', function ($ws, $fd) { echo "client-{$fd} is closedn"; }); $ws->start();# 程序运行 php ws_server.php//使用浏览器JS代码如下 var wsServer = 'ws://127.0.0.1:9502'; var websocket = new WebSocket(wsServer); websocket.onopen = function (evt) { console.log("Connected to WebSocket server."); }; websocket.onclose = function (evt) { console.log("Disconnected"); }; websocket.onmessage = function (evt) { console.log('Retrieved data from server: ' + evt.data); }; websocket.onerror = function (evt, e) { console.log('Error occured: ' + evt.data); };e) 定时器
swoole提供了类似JavaScript的setInterval/setTimeout异步高精度定时器，粒度为毫秒级。
vi timer_tick.php//每隔2000ms触发一次 $timerId = swoole_timer_tick(2000, function ($timer_id) { echo "tick-2000msn"; }); //9000ms后执行此函数 swoole_timer_after(9000, function () use ($timerId) { echo "after-9000ms.n"; //清除定时器 swoole_timer_clear($timerId); });php timer_tick.phpf) 同步、异步 TCP 客户端
vi tcp_client.php<?php $client = new swoole_client(SWOOLE_SOCK_TCP); //连接到服务器 if (!$client->connect('127.0.0.1', 9501, 0.5)) { die("connect failed."); } //向服务器发送数据 if (!$client->send("hello world")) { die("send failed."); } //从服务器接收数据 $data = $client->recv(); if (!$data) { die("recv failed."); } echo $data; //关闭连接 $client->close();# 异步只能用于cli vi tcp_async_client.php<?php $client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC); //注册连接成功回调 $client->on("connect", function($cli) { $cli->send("hello worldn"); }); //注册数据接收回调 $client->on("receive", function($cli, $data){ echo "Received: ".$data."n"; }); //注册连接失败回调 $client->on("error", function($cli){ echo "Connect failedn"; }); //注册连接关闭回调 $client->on("close", function($cli){ echo "Connection closen"; }); //发起连接 $client->connect('127.0.0.1', 9501, 0.5);g) 协程客户端
vi xxx.php<?php $http = new swoole_http_server("0.0.0.0", 9501); $http->on('request', function ($request, $response) { $db = new SwooleCoroutineMySQL(); $db->connect([ 'host' => '127.0.0.1', 'port' => 3306, 'user' => 'user', 'password' => 'pass', 'database' => 'test', ]); $data = $db->query('select * from test_table'); $response->end(json_encode($data)); }); $http->start();h) 协程：并发 shell_exec
vi xxx.php<?php $c = 10; while($c--) { go(function () { //这里使用 sleep 5 来模拟一个很长的命令 co::exec("sleep 5"); }); }