Swoole：PHP 协程框架

    $server = new Swoole\Websocket\Server("127.0.0.1", 9502);

    $server->on('open', function($server, $req) {
        echo "connection open: {$req->fd}\n";
    });

    $server->on('message', function($server, $frame) {
        echo "received message: {$frame->data}\n";
        $server->push($frame->fd, json_encode(["hello", "world"]));
    });

    $server->on('close', function($server, $fd) {
        echo "connection close: {$fd}\n";
    });

    $server->start();


                        

    $server = new Swoole\Server("127.0.0.1", 9503);

    $server->on('connect', function ($server, $fd){
        echo "connection open: {$fd}\n";
    });

    $server->on('receive', function ($server, $fd, $reactor_id, $data) {
        $server->send($fd, "Swoole: {$data}");
        $server->close($fd);
    });

    $server->on('close', function ($server, $fd) {
        echo "connection close: {$fd}\n";
    });

    $server->start();


                        

    $server = new Swoole\Server("127.0.0.1", 9502, SWOOLE_PROCESS, SWOOLE_SOCK_UDP);

    $server->on('Packet', function ($server, $data, $clientInfo) {
        $server->sendTo($clientInfo['address'], $clientInfo['port'], "Server ".$data);
        var_dump($clientInfo);
    });

    $server->start();


                        

    $server = new Swoole\Server("127.0.0.1", 9502);
    $server->set(array('task_worker_num' => 4));

    $server->on('receive', function($server, $fd, $reactor_id, $data) {
        $task_id = $server->task("Async");
        echo "Dispatch AsyncTask: [id=$task_id]\n";
    });

    $server->on('task', function ($server, $task_id, $reactor_id, $data) {
        echo "New AsyncTask[id=$task_id]\n";
        $server->finish("$data -> OK");
    });

    $server->on('finish', function ($server, $task_id, $data) {
        echo "AsyncTask[$task_id] finished: {$data}\n";
    });

    $server->start();


                        

    //此行代码后，文件操作，sleep，Mysqli，PDO，streams等都变成异步IO，见文档"一键协程化"章节
    Swoole\Runtime::enableCoroutine();
    // 10k pdo and mysqli read
    Co\Run(function() {
        for ($c = 50; $c--;) {
            go(function () {
                $pdo = new PDO('mysql:host=127.0.0.1;dbname=test;charset=utf8', 'root', 'root');
                $statement = $pdo->prepare('SELECT * FROM `user`');
                for ($n = 100; $n--;) {
                    $statement->execute();
                    assert(count($statement->fetchAll()) > 0);
                }
            });
        }
        for ($c = 50; $c--;) {
            go(function () {
                $mysqli = new mysqli('127.0.0.1', 'root', 'root', 'test');
                $statement = $mysqli->prepare('SELECT `id` FROM `user`');
                for ($n = 100; $n--;) {
                    $statement->bind_result($id);
                    $statement->execute();
                    $statement->fetch();
                    assert($id > 0);
                }
            });
        }
    });


                        

    //此行代码后，文件操作，sleep，Mysqli，PDO，streams等都变成异步IO，见文档"一键协程化"章节
    Swoole\Runtime::enableCoroutine();
    // UDP server & client with 12.8k requests in single process
    Co\run(function() {
        go(function () {
            $socket = new Swoole\Coroutine\Socket(AF_INET, SOCK_DGRAM, 0);
            $socket->bind('127.0.0.1', 9503);
            $client_map = [];
            for ($c = 128; $c--;) {
                for ($n = 0; $n < 100; $n++) {
                    $recv = $socket->recvfrom($peer);
                    $client_uid = "{$peer['address']}:{$peer['port']}";
                    $id = $client_map[$client_uid] = ($client_map[$client_uid] ?? -1) + 1;
                    assert($recv === "Client: Hello #{$id}!");
                    $socket->sendto($peer['address'], $peer['port'], "Server: Hello #{$id}!");
                }
            }
            $socket->close();
        });
        for ($c = 128; $c--;) {
            go(function () {
                $fp = stream_socket_client("udp://127.0.0.1:9503", $errno, $errstr, 1);
                if (!$fp) {
                    echo "$errstr ($errno)\n";
                    return;
                }
                for ($n = 0; $n < 100; $n++) {
                    fwrite($fp, "Client: Hello #{$n}!");
                    $recv = fread($fp, 1024);
                    list($address, $port) = explode(':', (stream_socket_get_name($fp, true)));
                    assert($address === '127.0.0.1' && (int)$port === 9503);
                    assert($recv === "Server: Hello #{$n}!");
                }
                fclose($fp);
            });
        }
    });

    //此行代码后，文件操作，sleep，Mysqli，PDO，streams等都变成异步IO，见文档"一键协程化"章节
    Swoole\Runtime::enableCoroutine();
    // php_stream tcp server & client with 12.8k requests in single process
    function tcp_pack(string $data): string
    {
        return pack('n', strlen($data)) . $data;
    }

    function tcp_length(string $head): int
    {
        return unpack('n', $head)[1];
    }

    Co\run(function() {
        go(function () {
            $ctx = stream_context_create(['socket' => ['so_reuseaddr' => true, 'backlog' => 128]]);
            $socket = stream_socket_server(
                'tcp://0.0.0.0:9502',
                $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctx
            );
            if (!$socket) {
                echo "$errstr ($errno)\n";
            } else {
                $i = 0;
                while ($conn = stream_socket_accept($socket, 1)) {
                    stream_set_timeout($conn, 5);
                    for ($n = 100; $n--;) {
                        $data = fread($conn, tcp_length(fread($conn, 2)));
                        assert($data === "Hello Swoole Server #{$n}!");
                        fwrite($conn, tcp_pack("Hello Swoole Client #{$n}!"));
                    }
                    if (++$i === 128) {
                        fclose($socket);
                        break;
                    }
                }
            }
        });
        for ($c = 128; $c--;) {
            go(function () {
                $fp = stream_socket_client("tcp://127.0.0.1:9502", $errno, $errstr, 1);
                if (!$fp) {
                    echo "$errstr ($errno)\n";
                } else {
                    stream_set_timeout($fp, 5);
                    for ($n = 100; $n--;) {
                        fwrite($fp, tcp_pack("Hello Swoole Server #{$n}!"));
                        $data = fread($fp, tcp_length(fread($fp, 2)));
                        assert($data === "Hello Swoole Client #{$n}!");
                    }
                    fclose($fp);
                }
            });
        }
    });

    //此行代码后，文件操作，sleep，Mysqli，PDO，streams等都变成异步IO，见文档"一键协程化"章节
    Swoole\Runtime::enableCoroutine();
    Co\run(function() {
        // i just want to sleep...
        for ($c = 100; $c--;) {
            go(function () {
                for ($n = 100; $n--;) {
                    usleep(1000);
                }
            });
        }

        // 10k file read and write
        for ($c = 100; $c--;) {
            go(function () use ($c) {
                $tmp_filename = "/tmp/test-{$c}.php";
                for ($n = 100; $n--;) {
                    $self = file_get_contents(__FILE__);
                    file_put_contents($tmp_filename, $self);
                    assert(file_get_contents($tmp_filename) === $self);
                }
                unlink($tmp_filename);
            });
        }
    });


                        

    Co\run(function(){
        //使用Channel进行协程间通讯
        $chan = new Swoole\Coroutine\Channel(1);
        Swoole\Coroutine::create(function () use ($chan) {
            for($i = 0; $i < 100000; $i++) {
                co::sleep(1.0);
                $chan->push(['rand' => rand(1000, 9999), 'index' => $i]);
                echo "$i\n";
            }
        });
        Swoole\Coroutine::create(function () use ($chan) {
            while(1) {
                $data = $chan->pop();
                var_dump($data);
            }
        });
    });