Netty 是一個高效能、非同步、事件驅動的網路應用框架,它可以輕鬆地建立可伸縮的網路應用程式。
在 PHP 中,使用 Netty4 函數可以讓我們更靈活和有效率地建立網頁應用程式。本文將介紹如何在 PHP 中使用 Netty4 函數。
一、準備工作
在使用 Netty4 函數之前,需要安裝 PHP7 以及 Netty4 擴充功能。可以使用以下命令安裝:
sudo pecl install netty
二、建立Netty 伺服器
建立Netty 伺服器的步驟如下:
<?php use NettyBufferByteBuf; use NettyHandlerChannelHandlerContext; use NettyHandlerChannelInboundHandler; class ServerHandler extends ChannelInboundHandler { public function channelRead(ChannelHandlerContext $ctx, $msg) { // 解析消息体 $byteBuf = ByteBuf::wrap($msg); $data = $byteBuf->readString(); // 处理业务逻辑 // ... // 响应消息 $response = 'Hello, ' . $data . '!'; $ctx->write($response); } }
<?php use NettyBootstrapServerBootstrap; use NettyChannelSocketServerSocketChannel; use NettyEventEventLoopGroup; use NettyTransportSocketAddress; class ServerLauncher { private $bossGroup; private $workerGroup; private $bootstrap; private $host; private $port; public function __construct($host, $port) { $this->host = $host; $this->port = $port; $this->bossGroup = new EventLoopGroup(1); $this->workerGroup = new EventLoopGroup(4); $this->bootstrap = new ServerBootstrap(); $this->bootstrap->group($this->bossGroup, $this->workerGroup) ->channel(ServerSocketChannel::class) ->childHandler(new ServerHandler()); } public function run() { $channel = $this->bootstrap->bind(new SocketAddress($this->host, $this->port)); $channel->closeFuture()->sync(); $this->bossGroup->shutdownGracefully(); $this->workerGroup->shutdownGracefully(); } }
<?php $server = new ServerLauncher('127.0.0.1', 8080); $server->run();
<?php use NettyBufferByteBuf; use NettyHandlerChannelHandlerContext; use NettyHandlerChannelInboundHandler; class ClientHandler extends ChannelInboundHandler { private $response; public function channelRead(ChannelHandlerContext $ctx, $msg) { // 解析消息体 $byteBuf = ByteBuf::wrap($msg); $this->response = $byteBuf->readString(); // 关闭连接 $ctx->close(); } public function getResponse() { return $this->response; } }
<?php use NettyBootstrapBootstrap; use NettyChannelChannelOption; use NettyChannelSocketClientSocketChannel; use NettyEventEventLoopGroup; use NettyTransportInetSocketAddress; class ClientLauncher { private $group; private $bootstrap; private $host; private $port; public function __construct($host, $port) { $this->host = $host; $this->port = $port; $loopGroup = new EventLoopGroup(1); $handler = new ClientHandler(); $this->bootstrap = new Bootstrap(); $this->bootstrap->group($loopGroup) ->channel(ClientSocketChannel::class) ->option(ChannelOption::SO_KEEPALIVE, true) ->handler($handler); $this->group = $loopGroup; } public function connect($message) { $channel = $this->bootstrap->connect(new InetSocketAddress($this->host, $this->port))->sync(); $channel->write($message)->addListener(function($future) use($channel, $handler) { if ($future->isSuccess()) { echo "Send message success. "; } else { echo "Send message failed. "; } }); $channel->closeFuture()->sync(); $this->group->shutdownGracefully(); return $handler->getResponse(); } }
<?php $client = new ClientLauncher('127.0.0.1', 8080); $response = $client->connect('Jack'); echo "Receive response: " . $response . " ";
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