PHP implementation of simple HTTP server based on droole

quote Swoole The official definition of :

PHP The asynchrony of language 、 parallel 、 High performance network communication framework , Use pure C Language writing , Provides PHP Asynchronous multithreaded server of language , asynchronous TCP/UDP Network client , asynchronous MySQL, Database connection pool ,AsyncTask, Message queue , Millisecond timer , Asynchronous file read and write , asynchronous DNS Inquire about .Swoole Can be widely used in the Internet 、 mobile communication 、 Enterprise software 、 Cloud computing 、 Network game 、 The Internet of things 、 Car networking 、 Smart home and other fields . Use PHP+Swoole As a network communication framework , Can make the enterprise IT The efficiency of the R & D team has been greatly improved , More focus on developing innovative products .

Briefly here swoole Two kinds of API Write simple HTTP The server .

swoole_server

Use swoole_server API, structure HTTP The server ,4 A step ：

1. structure Server object
2. Set run-time parameters
3. Register event callback function
4. Start the server

Direct code embodies , newly build server.php：

<?php
//1. structure Server object
$serv = new swoole_server("0.0.0.0", 9501);
//2. Set run-time parameters
$serv->set(array(
'worker_num' => 8,
'daemonize' => 0,
'max_request' => 10000,
'dispatch_mode' => 2,
'debug_mode'=> 1,
));
//3. Register event callback function
$serv->on('Receive', function($serv, $fd, $from_id, $data){
$respData='<h1>Hello Swoole.</h1>';
response($serv,$fd,$respData);// Encapsulate and send HTTP response message
});
//4. Start the server
$serv->start();

How to package HTTP response message ？ First you have to know HTTP The structure of the response message , Here's the picture

Know the structure of the response message , Then my response message should be like this ：

HTTP/1.1 200
Server:SwooleServer
Content-Type:text/html;charset=utf8
Content-Length:13
<h1>Hello Swoole.</h1>

Code implementation .

/**
* send content
* @param \swoole_server $serv
* @param int $fd
* @param string $respData
* @return void
*/
function response($serv,$fd,$respData){
// Response line
$response = array(
'HTTP/1.1 200',
);
// Response head
$headers = array(
'Server'=>'SwooleServer',
'Content-Type'=>'text/html;charset=utf8',
'Content-Length'=>strlen($respData),
);
foreach($headers as $key=>$val){
$response[] = $key.':'.$val;
}
// Blank line
$response[] = '';
// Response body
$response[] = $respData;
$send_data = join("\r\n",$response);
$serv->send($fd, $send_data);
}

Here we are , A simple response Hello Swoole. Of HTTP The server is done . Complete code ： here
（ I can't visit gist？ Configure local hosts file : 192.30.252.141 gist.github.com ）

function php server.php, Browser access http://127.0.0.1:9501/, Of course, we often use Nginx As a front-end agent , Set up a test domain name www.server.com, Local settings hosts mapping , You can access it through your domain name .Nginx To configure ： here
Be careful ： When the response message format is not correct , The browser page will always turn chrysanthemum , Wait for the request to return ...

later , With swoole_http_server,HTTP The server code becomes simpler ！

swoole_http_server

<?php
$http = new swoole_http_server("127.0.0.1", 9501);
$http->on('request', function ($request, $response) {
$html = "<h1>Hello Swoole.</h1>";
$response->end($html);
});

you 're right , In just a few lines of code . No need to encapsulate the response message .swoole_http_server Inherited from swoole_server, yes swoole built-in Http Server support , In a few lines of code, you can write an asynchronous non blocking multiprocessor Http The server .

Notice:swoole_http_server Yes Http Support for the agreement is not complete , Recommended as an application server only . And add... At the front end Nginx Acting as agent

Focus , Neverlost

All right, everyone , The above is the whole content of this article , You can see the people here , All are personnel . I said before ,PHP There are many technical points in this aspect , It's also because there are so many , I can't write it down , We won't read too much after writing it , So I've organized it into PDF And documentation , If you need anything, you can

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