Swoole

// create a server instance
$serv = new swoole_server("127.0.0.1", 9501); 

// attach handler for connect event, once client connected to server the registered handler will be executed
$serv->on('connect', function ($serv, $fd){  
    echo "Client:Connect.\n";
});

// attach handler for receive event, every piece of data received by server, the registered handler will be
// executed. And all custom protocol implementation should be located there.
$serv->on('receive', function ($serv, $fd, $from_id, $data) {
    $serv->send($fd, $data);
});

$serv->on('close', function ($serv, $fd) {
    echo "Client: Close.\n";
});

// start our server, listen on port and ready to accept connections
$serv->start();

$http = new swoole_http_server("0.0.0.0", 9501);

$http->on('request', function ($request, $response) {
    $response->header("Content-Type", "text/html; charset=utf-8");
    $response->end("<h1>Hello Swoole. #".rand(1000, 9999)."</h1>");
});

$http->start();

$ws = new swoole_websocket_server("0.0.0.0", 9502);

$ws->on('open', function ($ws, $request) {
    var_dump($request->fd, $request->get, $request->server);
    $ws->push($request->fd, "hello, welcome\n");
});

$ws->on('message', function ($ws, $frame) {
    echo "Message: {$frame->data}\n";
    $ws->push($frame->fd, "server: {$frame->data}");
});

$ws->on('close', function ($ws, $fd) {
    echo "client-{$fd} is closed\n";
});

$ws->start();

$db = new swoole_mysql('127.0.0.1', 'root', 'root', 'test');

$db->on("close", function($o){
    echo "mysql connection is closed\n";
});

$db->query("select now() as now_t", function($db, $result_rows){
    var_dump($result_rows);
    $db->close();
});

$client = new swoole_redis;
$client->connect('127.0.0.1', 6379, function (swoole_redis $client, $result) {
    echo "connect\n";
    var_dump($result);
    $client->set('key', 'swoole', function (swoole_redis $client, $result) {
        var_dump($result);
        $client->get('key', function (swoole_redis $client, $result) {
            var_dump($result);
            $client->close();
        });
    });
});

$cli = new swoole_http_client('127.0.0.1', 80);

$cli->setHeaders(['User-Agent' => "swoole"]);
$cli->post('/dump.php', array("test" => '9999999'), function (swoole_http_client $cli)
{
    echo "#{$cli->sock}\tPOST response Length: " . strlen($cli->body) . "\n";
    $cli->get('/index.php', function (swoole_http_client $cli)
    {
        echo "#{$cli->sock}\tGET response Length: " . strlen($cli->body) . "\n";
    });
});

$cli = new swoole_http_client('127.0.0.1', 9501);

$cli->on('message', function ($_cli, $frame) {
    var_dump($frame);
});

$cli->upgrade('/', function ($cli) {
    echo $cli->body;
    $cli->push("hello world");
});

$serv = new swoole_http_server("127.0.0.1", 9501, SWOOLE_BASE);

$port2 = $serv->listen("0.0.0.0", 9502, SWOOLE_SOCK_TCP);
$port2->on('receive', function (swoole_server $serv, $fd, $from_id, $data) {
    var_dump($data);
    $serv->send($fd, $data);    
});

$serv->on('request', function($req, $resp) {
    $resp->end("<h1>Hello World</h1>");
});


$serv->start();

$serv = new swoole_server("127.0.0.1", 9502);

// sets server configuration, we set task_worker_num config greater than 0 to enable task workers support
$serv->set(array('task_worker_num' => 4));

// attach handler for receive event, which have explained above.
$serv->on('receive', function($serv, $fd, $from_id, $data) {
    // we dispath a task to task workers by invoke the task() method of $serv
    // this method returns a task id as the identity of ths task
    $task_id = $serv->task($data);
    echo "Dispath AsyncTask: id=$task_id\n";
});

// attach handler for task event, the handler will be executed in task workers.
$serv->on('task', function ($serv, $task_id, $from_id, $data) {
    // handle the task, do what you want with $data
    echo "New AsyncTask[id=$task_id]".PHP_EOL;

    // after the task task is handled, we return the results to caller worker.
    $serv->finish("$data -> OK");
});

// attach handler for finish event, the handler will be executed in server workers, the same worker dispatched this task before.
$serv->on('finish', function ($serv, $task_id, $data) {
    echo "AsyncTask[$task_id] Finish: $data".PHP_EOL;
});

$serv->start();

//interval 2000ms
$serv->tick(2000, function ($timer_id) {
    echo "tick-2000ms\n";
});

//after 3000ms
$serv->after(3000, function () {
    echo "after 3000ms.\n"
});

bool swoole_event_add($fd, mixed $read_callback, mixed $write_callback, int $flag);
bool swoole_event_set($fd, mixed $read_callback, mixed $write_callback, int $flag);
bool swoole_event_del($fd);

bool swoole_async_readfile(string $filename, mixed $callback);
bool swoole_async_writefile('test.log', $file_content, mixed $callback);
bool swoole_async_read(string $filename, mixed $callback, int $trunk_size = 8192);
bool swoole_async_write(string $filename, string $content, int $offset = -1, mixed $callback = NULL);
void swoole_async_dns_lookup(string $domain, function($host, $ip){});
bool swoole_timer_after($after_n_ms, mixed $callback);
bool swoole_timer_tick($n_ms, mixed $callback);
bool swoole_timer_clear($n_ms, mixed $callback);

$client = new swoole_client(SWOOLE_SOCK_TCP);
if (!$client->connect('127.0.0.1', 9501, 0.5))
{
    die("connect failed.");
}

if (!$client->send("hello world"))
{
    die("send failed.");
}

$data = $client->recv();
if (!$data)
{
    die("recv failed.");
}

$client->close();

$client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC);

$client->on("connect", function($cli) {
    $cli->send("hello world\n");
});
$client->on("receive", function($cli, $data){
    echo "Received: ".$data."\n";
});
$client->on("error", function($cli){
    echo "Connect failed\n";
});
$client->on("close", function($cli){
    echo "Connection close\n";
});

$client->connect('127.0.0.1', 9501, 0.5);

swoole_client::__construct(int $sock_type, int $is_sync = SWOOLE_SOCK_SYNC, string $key);
int swoole_client::on(string $event, mixed $callback);
bool swoole_client::connect(string $host, int $port, float $timeout = 0.1, int $flag = 0)
bool swoole_client::isConnected();
int swoole_client::send(string $data);
bool swoole_client::sendfile(string $filename)
string swoole_client::recv(int $size = 65535, bool $waitall = 0);
bool swoole_client::close();