Swoole is a C extension for PHP designed to enhance performance through multi-threading and async capabilities, allowing for various server implementations like HTTP, WebSocket, and TCP. The document discusses Swoole's architecture, installation, performance features, and provides examples of asynchronous MySQL connections and HTTP clients. Additionally, it addresses the reasons why some organizations prefer Swoole over Go, citing factors like developer familiarity and training time.

1. SWOOLE PHP
Ant
2018-03-30

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Introduction

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Swoole is a C extension for PHP
Apache-2.0
+ =

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Ref: https://www.swoole.co.uk/

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Ref: https://www.swoole.co.uk/

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Architecture

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Ref: https://www.yanshuo.me/p/11565
Apache / Nginx + PHP-FPM Swoole

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Ref: https://www.spaceotechnologies.com/why-node-js-best-option-develop-chat-based-mobile-application/
Multi-threaded (Java) Single-thread / Event loop (Node)

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Ref: http://slides.com/albertcht/swoole-redefine-php#/3/6
Multi-threaded (Java) Nginx with PHP-FPM

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Ref: http://slides.com/albertcht/swoole-redefine-php#/3/6
Multi-threaded (Java) Nginx with PHP-FPM
PHP-FPM is PHP FastCGI Process Manager

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
PHP Files
Nginx with PHP-FPM

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
PHP Files
Nginx with PHP-FPM Swoole
PHP Files

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Example

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Swoole Installation
Ref: https://www.swoole.co.uk/

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Swoole HTTP Server
Ref: https://www.swoole.co.uk/

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Swoole WebSocket Server
Ref: https://www.swoole.co.uk/

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Swoole TCP Server
Ref: https://www.swoole.co.uk/

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Swoole TCP Client
Ref: https://www.swoole.co.uk/

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Swoole Async
Ref: https://www.swoole.co.uk/

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Ref: https://www.swoole.co.uk/
Swoole Task

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Performance

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Performance
Demo

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Connection pool

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Ref: https://docs.oracle.com/cd/B28359_01/appdev.111/b28395/oci09adv.htm#LNOCI87728
Connection pool
➊ Reduces the number of times new connection objects are created.
➋ Promotes connection object reuse.
➌ Quickens the process of getting a connection.
➍ Minimizes the number of stale connections.

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconnDBconn

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconn TaskDBconn

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Ref: http://ae.koroglu.org/nginx-with-php-fpm-on-centos-6/
Swoole
PHP Files
DBconn Task
vendor/autoload.php
DBconn

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Async

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Ref: https://wiki.swoole.com/wiki/page/517.html
Async MySQL Client
$db = new swoole_mysql;
$server = array(
'host' => '192.168.1.1',
'port' => 3306,
'user' => 'test',
'password' => 'test',
'database' => 'test',
'charset' => 'utf8',
);
$db->connect($server, function ($db, $r) {
if ($r === false) {
var_dump($db->connect_errno, $db->connect_error);
die;
}
$db->query('show tables', function(swoole_mysql $db, $r) {
if ($r === false)
{
var_dump($db->error, $db->errno);
}
elseif ($r === true )
{
var_dump($db->affected_rows, $db->insert_id);
}
var_dump($r);
$db->close();
});
});

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Memory leaking !!

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Memory leaking !!

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Ref: https://github.com/guzzle/guzzle/issues/1407

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Coroutine

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Ref: https://wiki.swoole.com/wiki/page/604.html
Coroutine: HTTP Client
$httpclient = new SwooleCoroutineHttpClient('127.0.0.1', 80);
$httpclient->setHeaders(['Host' => "api.mp.qq.com"]);
$httpclient->set([ 'timeout' => 1]);
$httpclient->setDefer();
$httpclient->get('/');
// to do something
$http_res = $httpclient->recv();

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Why not Go(lang)

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Why not Go(lang)
➊ Not most developers in company are familiar with Go(lang).
➋ Not so many Go(lang) developers in Taiwan (future?).
➌ Training time.
➍ Swoole performance is close to Go(lang) in some cases.

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