How to use PHP asynchronous parallel network extension swoole

PHP asynchronous parallel network expansion how swoole uses Swoole is PHP's asynchronous parallel expansion, a bit like Node. js, but swoole supports both synchronous and asynchronous, more powerful than node. The Swoole extension is based on epoll high-performance event polling and is multi-threaded, with excellent performance .? In addition to the asynchronous parallel network that provides the network to Serve PHP, Swoole expands how to use swoole.

Swoole is a PHP asynchronous parallel extension, a bit like Node. js, but swoole supports both synchronization and asynchronization, which is more powerful than node. The Swoole extension is based on epoll high-performance event polling and is multi-threaded, with excellent performance.

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In addition to the network Server/Client function, Swoole also provides the Task asynchronous Task manager, which enables some slow functions in your program to be executed asynchronously.

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This article describes how to use swoole extensions.

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Step 1 install

Swoole only supports Linux, FreeBSD, and Mac. if you are using a Windows system, install a virtual machine, either VirtualBox or VMWare. Then install Linux in the virtual machine.

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Swoole has been added to the official PHP Extension library, so you only need to execute

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pecl install swoole

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You can install it. After installation, modify php. ini and add extension = swoole. so. Check php-m or phpinfo. if swoole is displayed, the installation is successful.

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Step 2 write the Server program

Create a PHP script file server. php with the following code:

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$serv = new swoole_server("127.0.0.1", 9501);$serv->on('connect', function ($serv, $fd){    echo "Client:Connect.\n";});$serv->on('receive', function ($serv, $fd, $from_id, $data) {    $serv->send($fd, 'Swoole: '.$data);});$serv->on('close', function ($serv, $fd) {    echo "Client: Close.\n";});$serv->start();

? Then execute:

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php server.php

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? Use telnet to connect to your server:

telnet 127.0.0.1 9501> hello world> Swoole: hello world

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? Is it very simple? just 11 lines of code creates an asynchronous high-concurrency TCPServer for data sending and receiving through the underlying network. Next, you can do what you want to do, instant chat, file sending and receiving, communication, and so on.

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