PHP Swoole 入门指南
什么是 Swoole?
Swoole 是一个高性能协程 PHP 服务器框架,旨在处理高并发的网络请求。它允许开发人员创建并发、事件驱动的应用程序,从而提高网站和应用程序的性能。
入门教程
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1. 安装 Swoole
通过 Composer 安装 Swoole:
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composer require swoole/swoole
2. 创建 Swoole Server
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<?php
use SwooleHttpServer;
$server = new Server("0.0.0.0", 9501);
$server->on("request", function ($request, $response) {
$response->header("Content-Type", "text/plain");
$response->end("Hello World!");
});
$server->start();
?>
3. 创建 Swoole Worker
在服务器进程中创建工作进程以处理请求:
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<?php
use SwooleProcess;
$process = new Process(function ($worker) {
echo "Worker started: " . $worker->id . "
";
while (true) {
// 处理任务
sleep(1);
}
});
$process->start();
?>
4. 使用协程
Swoole 允许使用协程进行并发的非阻塞 I/O 操作:
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<?php
use SwooleCoroutine;
$uri = "https://example.com";
Coroutine
un(function () use ($uri) {
$client = new SwooleCoroutineHttpClient($uri);
$client->get("/");
$response = $client->recv();
echo $response->body;
});
?>
5. 处理 WebSockets
Swoole 支持处理 WebSockets:
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<?php
use SwooleWebSocketServer;
$server = new Server("0.0.0.0", 9502);
$server->on("open", function ($server, $request) {
echo "Client opened: " . $request->fd . "
";
});
$server->on("message", function ($server, $frame) {
echo "Received message: " . $frame->data . "
";
$server->push($frame->fd, "Hello from server!");
});
$server->on("close", function ($server, $fd) {
echo "Client closed: " . $fd . "
";
});
$server->start();
?>
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