README

 _                               _  _____ 
| |                             | |/ ____|
| |     __ _ _ __ __ ___   _____| | (___  
| |    / _` | '__/ _` \ \ / / _ \ |\___ \ 
| |___| (_| | | | (_| |\ V /  __/ |____) |
|______\__,_|_|  \__,_| \_/ \___|_|_____/ 
                                           

🚀 Speed up Laravel/Lumen by Swoole, let's fly.

中文文档

Features

• Built-in Http/WebSocket server

• Multi-port mixed protocol

• Coroutine MySQL

• Memory resident

• Asynchronous event listening

• Asynchronous task queue

• Millisecond cron job

• Gracefully reload

• Automatically reload when code is modified

• Support Laravel/Lumen both, good compatibility

• Simple & Out of the box

Requirements

Install

1.Require package via Composer(packagist).

# Run in the root path of your Laravel/Lumen project.
composer require "hhxsv5/laravel-s:~1.0" -vvv
# Make sure that your composer.lock file is under the VCS

2.Register service provider.

• Laravel: in config/app.php file

'providers' => [
    //...
    Hhxsv5\LaravelS\Illuminate\LaravelSServiceProvider::class,
],

• Lumen: in bootstrap/app.php file

$app->register(Hhxsv5\LaravelS\Illuminate\LaravelSServiceProvider::class);

3.Publish configuration.

Suggest that do publish after upgrade LaravelS every time

php artisan laravels publish

Special for Lumen: you DO NOT need to load this configuration manually in bootstrap/app.php file, LaravelS will load it automatically.

// Unnecessary to call configure()
$app->configure('laravels');

4.Change config/laravels.php: listen_ip, listen_port, refer Settings.

Run demo

php artisan laravels {start|stop|restart|reload|publish}

Cooperate with Nginx (Recommended)

gzip on;
gzip_min_length 1024;
gzip_comp_level 2;
gzip_types text/plain text/css text/javascript application/json application/javascript application/x-javascript application/xml application/x-httpd-php image/jpeg image/gif image/png font/ttf font/otf image/svg+xml;
gzip_vary on;
gzip_disable "msie6";
upstream laravels {
    server 192.168.0.1:5200 weight=5 max_fails=3 fail_timeout=30s;
    #server 192.168.0.2:5200 weight=3 max_fails=3 fail_timeout=30s;
    #server 192.168.0.3:5200 backup;
}
server {
    listen 80;
    server_name laravels.com;
    root /xxxpath/laravel-s-test/public;
    access_log /yyypath/log/nginx/$server_name.access.log  main;
    autoindex off;
    index index.html index.htm;
    # Nginx handles the static resources(recommend enabling gzip), LaravelS handles the dynamic resource.
    location / {
        try_files $uri @laravels;
    }
    # Response 404 directly when request the PHP file, to avoid exposing public/*.php
    #location ~* \.php$ {
    #    return 404;
    #}
    location @laravels {
        proxy_http_version 1.1;
        # proxy_connect_timeout 60s;
        # proxy_send_timeout 60s;
        # proxy_read_timeout 120s;
        proxy_set_header Connection "keep-alive";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $scheme;
        proxy_set_header Server-Protocol $server_protocol;
        proxy_set_header Server-Name $server_name;
        proxy_set_header Server-Addr $server_addr;
        proxy_set_header Server-Port $server_port;
        proxy_pass http://laravels;
    }
}

Cooperate with Apache

LoadModule proxy_module /yyypath/modules/mod_deflate.so
<IfModule deflate_module>
    SetOutputFilter DEFLATE
    DeflateCompressionLevel 2
    AddOutputFilterByType DEFLATE text/html text/plain text/css text/javascript application/json application/javascript application/x-javascript application/xml application/x-httpd-php image/jpeg image/gif image/png font/ttf font/otf image/svg+xml
</IfModule>

<VirtualHost *:80>
    ServerName www.laravels.com
    ServerAdmin hhxsv5@sina.com

    DocumentRoot /xxxpath/laravel-s-test/public;
    DirectoryIndex index.html index.htm
    <Directory "/">
        AllowOverride None
        Require all granted
    </Directory>

    LoadModule proxy_module /yyypath/modules/mod_proxy.so
    LoadModule proxy_module /yyypath/modules/mod_proxy_balancer.so
    LoadModule proxy_module /yyypath/modules/mod_lbmethod_byrequests.so.so
    LoadModule proxy_module /yyypath/modules/mod_proxy_http.so.so
    LoadModule proxy_module /yyypath/modules/mod_slotmem_shm.so
    LoadModule proxy_module /yyypath/modules/mod_rewrite.so

    ProxyRequests Off
    ProxyPreserveHost On
    <Proxy balancer://laravels>  
        BalancerMember http://192.168.1.1:8011 loadfactor=7
        #BalancerMember http://192.168.1.2:8011 loadfactor=3
        #BalancerMember http://192.168.1.3:8011 loadfactor=1 status=+H
        ProxySet lbmethod=byrequests
    </Proxy>
    #ProxyPass / balancer://laravels/
    #ProxyPassReverse / balancer://laravels/

    # Apache handles the static resources, LaravelS handles the dynamic resource.
    RewriteEngine On
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-d
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-f
    RewriteRule ^/(.*)$ balancer://laravels/%{REQUEST_URI} [P,L]

    ErrorLog ${APACHE_LOG_DIR}/www.laravels.com.error.log
    CustomLog ${APACHE_LOG_DIR}/www.laravels.com.access.log combined
</VirtualHost>

Enable WebSocket server

The Listening address of WebSocket Sever is the same as Http Server.

1.Create WebSocket Handler class, and implement interface WebSocketHandlerInterface.

namespace App\Services;
use Hhxsv5\LaravelS\Swoole\WebSocketHandlerInterface;
/**
 * @see https://www.swoole.co.uk/docs/modules/swoole-websocket-server
 */
class WebSocketService implements WebSocketHandlerInterface
{
    // Declare constructor without parameters
    public function __construct()
    {
    }
    public function onOpen(\swoole_websocket_server $server, \swoole_http_request $request)
    {
        // Laravel has finished its lifetime before triggering onOpen event, so Laravel's Request & Session are available here, Request is readable only, Session is readable & writable both.
        \Log::info('New WebSocket connection', [$request->fd, request()->all(), session()->getId(), session('xxx'), session(['yyy' => time()])]);
        $server->push($request->fd, 'Welcome to LaravelS');
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
    }
    public function onMessage(\swoole_websocket_server $server, \swoole_websocket_frame $frame)
    {
        \Log::info('Received message', [$frame->fd, $frame->data, $frame->opcode, $frame->finish]);
        $server->push($frame->fd, date('Y-m-d H:i:s'));
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
    }
    public function onClose(\swoole_websocket_server $server, $fd, $reactorId)
    {
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
    }
}

2.Modify config/laravels.php.

// ...
'websocket'      => [
    'enable'  => true,
    'handler' => \App\Services\WebSocketService::class,
],
'swoole'         => [
    //...
    // Must set dispatch_mode in (2, 4, 5), see https://www.swoole.co.uk/docs/modules/swoole-server/configuration
    'dispatch_mode' => 2,
    //...
],
// ...

3.Use swoole_table to bind FD & UserId, optional, Swoole Table Demo. Also you can use the other global storage services, like Redis/Memcached/MySQL, but be careful that FD will be possible conflicting between multiple Swoole Servers.

4.Cooperate with Nginx (Recommended)

Refer WebSocket Proxy

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}
upstream laravels {
    server 192.168.0.1:5200 weight=5 max_fails=3 fail_timeout=30s;
    #server 192.168.0.2:5200 weight=3 max_fails=3 fail_timeout=30s;
    #server 192.168.0.3:5200 backup;
}
server {
    listen 80;
    server_name laravels.com;
    root /xxxpath/laravel-s-test/public;
    access_log /yyypath/log/nginx/$server_name.access.log  main;
    autoindex off;
    index index.html index.htm;
    # Nginx handles the static resources(recommend enabling gzip), LaravelS handles the dynamic resource.
    location / {
        try_files $uri @laravels;
    }
    # Response 404 directly when request the PHP file, to avoid exposing public/*.php
    #location ~* \.php$ {
    #    return 404;
    #}
    # Http and WebSocket are concomitant, Nginx identifies them by "location"
    # Javascript: var ws = new WebSocket("ws://laravels.com/ws");
    location =/ws {
        proxy_http_version 1.1;
        # proxy_connect_timeout 60s;
        # proxy_send_timeout 60s;
        # proxy_read_timeout: Nginx will close the connection if client does not send data to server in 60 seconds; At the same time, this close behavior is also affected by heartbeat setting of Swoole
        # proxy_read_timeout 60s;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $scheme;
        proxy_set_header Server-Protocol $server_protocol;
        proxy_set_header Server-Name $server_name;
        proxy_set_header Server-Addr $server_addr;
        proxy_set_header Server-Port $server_port;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_pass http://laravels;
    }
    location @laravels {
        proxy_http_version 1.1;
        # proxy_connect_timeout 60s;
        # proxy_send_timeout 60s;
        # proxy_read_timeout 60s;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Real-PORT $remote_port;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $scheme;
        proxy_set_header Server-Protocol $server_protocol;
        proxy_set_header Server-Name $server_name;
        proxy_set_header Server-Addr $server_addr;
        proxy_set_header Server-Port $server_port;
        proxy_pass http://laravels;
    }
}

Listen events

System events

Usually, you can reset/destroy some global/static variables, or change the current Request/Response object.

• laravels.received_request After LaravelS parsed swoole_http_request to Illuminate\Http\Request, before Laravel's Kernel handles this request.

// Edit file `app/Providers/EventServiceProvider.php`, add the following code into method `boot`
// If no variable $events, you can also call Facade \Event::listen(). 
$events->listen('laravels.received_request', function (\Illuminate\Http\Request $req, $app) {
    $req->query->set('get_key', 'hhxsv5');// Change query of request
    $req->request->set('post_key', 'hhxsv5'); // Change post of request
});

• laravels.generated_response After Laravel's Kernel handled the request, before LaravelS parses Illuminate\Http\Response to swoole_http_response.

// Edit file `app/Providers/EventServiceProvider.php`, add the following code into method `boot`
// If no variable $events, you can also call Facade \Event::listen(). 
$events->listen('laravels.generated_response', function (\Illuminate\Http\Request $req, \Symfony\Component\HttpFoundation\Response $rsp, $app) {
    $rsp->headers->set('header-key', 'hhxsv5');// Change header of response
});

Customized asynchronous events

This feature depends on AsyncTask of Swoole, your need to set swoole.task_worker_num in config/laravels.php firstly. The performance of asynchronous event processing is influenced by number of Swoole task process, you need to set task_worker_num appropriately.

1.Create event class.

use Hhxsv5\LaravelS\Swoole\Task\Event;
class TestEvent extends Event
{
    private $data;
    public function __construct($data)
    {
        $this->data = $data;
    }
    public function getData()
    {
        return $this->data;
    }
}

2.Create listener class.

use Hhxsv5\LaravelS\Swoole\Task\Event;
use Hhxsv5\LaravelS\Swoole\Task\Listener;
class TestListener1 extends Listener
{
    // Declare constructor without parameters
    public function __construct()
    {
    }
    public function handle(Event $event)
    {
        \Log::info(__CLASS__ . ':handle start', [$event->getData()]);
        sleep(2);// Simulate the slow codes
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
    }
}

3.Bind event & listeners.

// Bind event & listeners in file "config/laravels.php", one event => many listeners
[
    // ...
    'events' => [
        \App\Tasks\TestEvent::class => [
            \App\Tasks\TestListener1::class,
            //\App\Tasks\TestListener2::class,
        ],
    ],
    // ...
];

4.Fire event.

// Create instance of event and fire it, "fire" is asynchronous.
use Hhxsv5\LaravelS\Swoole\Task\Event;
$success = Event::fire(new TestEvent('event data'));
var_dump($success);// Return true if sucess, otherwise false

Asynchronous task queue

This feature depends on AsyncTask of Swoole, your need to set swoole.task_worker_num in config/laravels.php firstly. The performance of task processing is influenced by number of Swoole task process, you need to set task_worker_num appropriately.

1.Create task class.

use Hhxsv5\LaravelS\Swoole\Task\Task;
class TestTask extends Task
{
    private $data;
    private $result;
    public function __construct($data)
    {
        $this->data = $data;
    }
    // The logic of task handling, run in task process, CAN NOT deliver task
    public function handle()
    {
        \Log::info(__CLASS__ . ':handle start', [$this->data]);
        sleep(2);// Simulate the slow codes
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
        $this->result = 'the result of ' . $this->data;
    }
    // Optional, finish event, the logic of after task handling, run in worker process, CAN deliver task 
    public function finish()
    {
        \Log::info(__CLASS__ . ':finish start', [$this->result]);
        Task::deliver(new TestTask2('task2 data')); // Deliver the other task
    }
}

2.Deliver task.

// Create instance of TestTask and deliver it, "deliver" is asynchronous.
use Hhxsv5\LaravelS\Swoole\Task\Task;
$task = new TestTask('task data');
// $task->delay(3);// delay 3 seconds to deliver task
$ret = Task::deliver($task);
var_dump($ret);// Return true if sucess, otherwise false

Millisecond cron job

Wrapper cron job base on Swoole's Millisecond Timer, replace Linux Crontab.

1.Create cron job class.

namespace App\Jobs\Timer;
use Hhxsv5\LaravelS\Swoole\Timer\CronJob;
class TestCronJob extends CronJob
{
    protected $i = 0;
    // Declare constructor without parameters
    public function __construct()
    {
    }
    public function interval()
    {
        return 1000;// Run every 1000ms
    }
    public function isImmediate()
    {
        return false;// Whether to trigger `run` immediately after setting up
    }
    public function run()
    {
        \Log::info(__METHOD__, ['start', $this->i, microtime(true)]);
        // do something
        $this->i++;
        \Log::info(__METHOD__, ['end', $this->i, microtime(true)]);

        if ($this->i >= 10) { // run 10 times only
            \Log::info(__METHOD__, ['stop', $this->i, microtime(true)]);
            $this->stop(); // stop this cron job
        }
        // throw new \Exception('an exception');// all exceptions will be ignored, then record them into Swoole log, you need to try/catch them
    }
}

2.Bind cron job.

// Bind cron jobs in file "config/laravels.php"
[
    // ...
    'timer'          => [
        'enable' => true, // Enable Timer
        'jobs'   => [ // the list of cron job
            // Enable LaravelScheduleJob to run `php artisan schedule:run` every 1 minute, replace Linux Crontab
            //\Hhxsv5\LaravelS\Illuminate\LaravelScheduleJob::class,
            \App\Jobs\Timer\TestCronJob::class,
        ],
    ],
    // ...
];

3.Note: it will launch multiple timers when build the server cluster, so you need to make sure that launch one timer only to avoid running repetitive task.

Get the instance of swoole_server in your project

/**
 * $swoole is the instance of `swoole_websocket_server` if enable WebSocket server, otherwise `\swoole_http_server`
 * @var \swoole_http_server|\swoole_websocket_server $swoole
 */
$swoole = app('swoole');
var_dump($swoole->stats());// Singleton

Use swoole_table

1.Define swoole_table, support multiple.

All defined tables will be created before Swoole starting.

// in file "config/laravels.php"
[
    // ...
    'swoole_tables'  => [
        // Scene：bind UserId & FD in WebSocket
        'ws' => [// The Key is table name, will add suffix "Table" to avoid naming conficts. Here defined a table named "wsTable"
            'size'   => 102400,// The max size
            'column' => [// Define the columns
                ['name' => 'value', 'type' => \swoole_table::TYPE_INT, 'size' => 8],
            ],
        ],
        //...Define the other tables
    ],
    // ...
];

2.Access swoole_table: all table instances will be bound on swoole_server, access by app('swoole')->xxxTable.

// Scene：bind UserId & FD in WebSocket
public function onOpen(\swoole_websocket_server $server, \swoole_http_request $request)
{
    // var_dump(app('swoole') === $server);// The same instance
    $userId = mt_rand(1000, 10000);
    app('swoole')->wsTable->set('uid:' . $userId, ['value' => $request->fd]);// Bind map uid to fd
    app('swoole')->wsTable->set('fd:' . $request->fd, ['value' => $userId]);// Bind map fd to uid
    $server->push($request->fd, 'Welcome to LaravelS');
}
public function onMessage(\swoole_websocket_server $server, \swoole_websocket_frame $frame)
{
    foreach (app('swoole')->wsTable as $key => $row) {
        if (strpos($key, 'uid:') === 0) {
            $server->push($row['value'], 'Broadcast: ' . date('Y-m-d H:i:s'));// Broadcast
        }
    }
}
public function onClose(\swoole_websocket_server $server, $fd, $reactorId)
{
    $uid = app('swoole')->wsTable->get('fd:' . $fd);
    if ($uid !== false) {
        app('swoole')->wsTable->del('uid:' . $uid['value']); // Ubind uid map
    }
    app('swoole')->wsTable->del('fd:' . $fd);// Unbind fd map
    $server->push($fd, 'Goodbye');
}

Multi-port mixed protocol

For more information, please refer to Swoole Server AddListener

To make our main server support more protocols not just Http and WebSocket, we bring the feature multi-port mixed protocol of Swoole in LaravelS and name it Socket. Now, you can build TCP/UDP applications easily on top of Laravel.

1. Create socket handler class, and extend Hhxsv5\LaravelS\Swoole\Socket\{TcpSocket|UdpSocket|Http|WebSocket}.

namespace App\Sockets;
use Hhxsv5\LaravelS\Swoole\Socket\TcpSocket;
class TestTcpSocket extends TcpSocket
{
    public function onConnect(\swoole_server $server, $fd, $reactorId)
    {
        \Log::info('New TCP connection', [$fd]);
        $server->send($fd, 'Welcome to LaravelS.');
    }
    public function onReceive(\swoole_server $server, $fd, $reactorId, $data)
    {
        \Log::info('Received data', [$fd, $data]);
        $server->send($fd, 'LaravelS: ' . $data);
        if ($data === "quit\r\n") {
            $server->send($fd, 'LaravelS: bye' . PHP_EOL);
            $server->close($fd);
        }
    }
    public function onClose(\swoole_server $server, $fd, $reactorId)
    {
        \Log::info('New TCP connection', [$fd]);
        $server->send($fd, 'Goodbye');
    }
}

These Socket connections share the same worker processes with your HTTP/WebSocket connections. So it won't be a problem at all if you want to deliver tasks, use swoole_table, even Laravel components such as DB, Eloquent and so on. At the same time, you can access swoole_server_port object directly by member property swoolePort.

public function onReceive(\swoole_server $server, $fd, $reactorId, $data)
{
    $port = $this->swoolePort; //There you go
}

1. Register Sockets.

// Edit `config/laravels.php`
//...
'sockets' => [
    [
        'host'     => '127.0.0.1',
        'port'     => 5291,
        'type'     => SWOOLE_SOCK_TCP,// Socket type: SWOOLE_SOCK_TCP/SWOOLE_SOCK_UDP
        'settings' => [// Swoole settings：https://www.swoole.co.uk/docs/modules/swoole-server-methods#swoole_server-addlistener
            'open_eof_check' => true,
            'package_eof'    => "\r\n",
        ],
        'handler'  => \App\Sockets\TestTcpSocket::class,
    ],
],

For TCP socket, onConnect and onClose events will be blocked when dispatch_mode of Swoole is 1/3, so if you want to unblock these two events please set dispatch_mode to 2/4/5.

'swoole' => [
    //...
    'dispatch_mode' => 2,
    //...
];

1. Test.

• TCP: telnet 127.0.0.1 5291

• UDP: [Linux] echo "Hello LaravelS" > /dev/udp/127.0.0.1/5292

1. Register example of other protocols.

• UDP

'sockets' => [
    [
       'host'     => '0.0.0.0',
        'port'     => 5292,
        'type'     => SWOOLE_SOCK_UDP,
        'settings' => [
            'open_eof_check' => true,
            'package_eof'    => "\r\n",
        ],
        'handler'  => \App\Sockets\TestUdpSocket::class,
    ],
],

• Http

'sockets' => [
    [
       'host'     => '0.0.0.0',
        'port'     => 5293,
        'type'     => SWOOLE_SOCK_TCP,
        'settings' => [
            'open_http_protocol' => true,
        ],
        'handler'  => \App\Sockets\TestHttp::class,
    ],
],

• WebSocket

'sockets' => [
    [
       'host'     => '0.0.0.0',
        'port'     => 5294,
        'type'     => SWOOLE_SOCK_TCP,
        'settings' => [
            'open_http_protocol'      => true,
            'open_websocket_protocol' => true,
        ],
        'handler'  => \App\Sockets\TestWebSocket::class,
    ],
],

Coroutine MySQL

Support coroutine client for MySQL database.

1.Requirements: Swoole>=4.0, Laravel>=5.1(Lumen will be supported later).

2.Change the driver of MySQL connection to sw-co-mysql in file config/database.php.

'connections' => [
    //...
    'mysql-test' => [
        //'driver'    => 'mysql',
        'driver'    => 'sw-co-mysql',
        'host'      => env('DB_HOST', 'localhost'),
        'port'      => env('DB_PORT', 3306),
        'database'  => env('DB_DATABASE', 'forge'),
        'username'  => env('DB_USERNAME', 'forge'),
        'password'  => env('DB_PASSWORD', ''),
        'charset'   => 'utf8mb4',
        'collation' => 'utf8mb4_unicode_ci',
        'prefix'    => '',
        'strict'    => true,
    ],
    //...
],

3.Replace Illuminate\Database\DatabaseServiceProvider::class of providers to \Hhxsv5\LaravelS\Illuminate\Database\DatabaseServiceProvider::class in file config/app.php.

'providers' => [
    //...
    //Illuminate\Database\DatabaseServiceProvider::class,// Just annotate this line.
    \Hhxsv5\LaravelS\Illuminate\Database\DatabaseServiceProvider::class,
    //...
],

4.Now, you just use QueryBuilder and ORM as usual. (Alpha stage, there should be some bugs, please give us your feedback).

Important notices

• Singleton Issue

  • Under FPM mode, singleton instances will be instantiated and recycled in every request, request start=>instantiate instance=>request end=>recycled instance.

  • Under Swoole Server, All singleton instances will be held in memory, different lifetime from FPM, request start=>instantiate instance=>request end=>do not recycle singleton instance. So need developer to maintain status of singleton instances in ervery request.

  • Common solutions:

    1. Reset status of singleton instances by Middleware.

    2. Re-register ServiceProvider, add XxxServiceProvider into register_providers of file laravels.php. So that reinitialize singleton instances in ervery request Refer.

• Known compatible issues

• Get all info of request from Illuminate\Http\Request Object, compatible with $_SERVER/$_ENV/$_GET/$_POST/$_FILES/$_COOKIE/$_REQUEST, CANNOT USE $_SESSION.

public function form(\Illuminate\Http\Request $request)
{
    $name = $request->input('name');
    $all = $request->all();
    $sessionId = $request->cookie('sessionId');
    $photo = $request->file('photo');
    $rawContent = $request->getContent();
    //...
}

• Respond by Illuminate\Http\Response Object, compatible with echo/vardump()/print_r()，CANNOT USE functions like header()/setcookie()/http_response_code().

public function json()
{
    return response()->json(['time' => time()])->header('header1', 'value1')->withCookie('c1', 'v1');
}

• The various singleton connections will be memory resident, recommend to enable persistent connection.

1. Database connection, it will reconnect automatically immediately after disconnect.

// config/database.php
//...
'connections' => [
    'my_conn' => [
        'driver'    => 'mysql',
        'host'      => env('DB_MY_CONN_HOST', 'localhost'),
        'port'      => env('DB_MY_CONN_PORT', 3306),
        'database'  => env('DB_MY_CONN_DATABASE', 'forge'),
        'username'  => env('DB_MY_CONN_USERNAME', 'forge'),
        'password'  => env('DB_MY_CONN_PASSWORD', ''),
        'charset'   => 'utf8mb4',
        'collation' => 'utf8mb4_unicode_ci',
        'prefix'    => '',
        'strict'    => false,
        'options'   => [
            // Enable persistent connection
            \PDO::ATTR_PERSISTENT => true,
        ],
    ],
    //...
],
//...

1. Redis connection, it won't reconnect automatically immediately after disconnect, and will throw an exception about lost connection, reconnect next time. You need to make sure that SELECT DB correctly before operating Redis every time.

// config/database.php
'redis' => [
        'default' => [
            'host'       => env('REDIS_HOST', 'localhost'),
            'password'   => env('REDIS_PASSWORD', null),
            'port'       => env('REDIS_PORT', 6379),
            'database'   => 0,
            'persistent' => true, // Enable persistent connection
        ],
    ],
//...

• global, static variables which you declared are need to destroy(reset) manually.

• Infinitely appending element into static/global variable will lead to memory leak.

// Some class
class Test
{
    public static $array = [];
    public static $string = '';
}

// Controller
public function test(Request $req)
{
    // Memory leak
    Test::$array[] = $req->input('param1');
    Test::$string .= $req->input('param2');
}

Todo list

1. Connection pool for MySQL/Redis.

2. Wrap coroutine clients for MySQL(alpha stage)/Redis/Http.

Alternatives

• swooletw/laravel-swoole

License

MIT