Async PHP (Sunshine)

PHP has emerged from it’s dark past; just in time to learn from the advances in event-based programming languages/platforms. As a result; there is vast, untapped potential in developing event-based, real-time applications. Utilising emerging open-source projects, PHP developers can join the party.

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1. async php
2. thanks sunshine
3. thanks silverstripe
4. story 'me
5. you can write async code
6. spreading work to other threads
7. forking
8. $pid = pcntl_fork(); if ($pid) { // you're in the parent process pcntl_waitpid($pid, $status, WUNTRACED); if ($status > 0) { // handle the error } } else { // do something in the child process if ($failed) { exit(1); } exit(0); }
9. php.net/manual/en/book.pcntl.php
10. leanpub.com/signalingphp
11. threading
12. class MyThread extends Thread { public $hasLicense = null; private $repository; public function __construct($repository) { $this->repository = escapeshellarg($repository); } public function run() { $folder = hash("sha256", $this->repository); exec("git clone " . $this->repository . " " . $folder); chdir(__DIR__ . "/" . $folder); $this->hasLicense = preg_grep("/^LICENSE/i", glob("*")); } }
13. $thread = new MyThread("git@github.com:php/php-src.git"); if ($thread->start()) { $thread->join(); // do something with $thread->hasLicense }
14. php.net/manual/en/book.pthreads.php
15. pthreads.org
16. spreading the work to other machines
17. message queues
18. $pheanstalk = new Pheanstalk\Pheanstalk("127.0.0.1"); $pheanstalk->useTube("sunshine")->put("a message"); // some time later... $message = $pheanstalk->watch("sunshine")->reserve(); $pheanstalk->delete($message);
19. $context = new ZMQContext(); $socket = new ZMQSocket($context, ZMQ::SOCKET_PUSH); $socket->connect("tcp://127.0.0.1:5555"); $socket->send("a message"); // some time later $socket = new ZMQSocket($context, ZMQ::SOCKET_PULL); $socket->bind("tcp://127.0.0.1:5555"); $message = $socket->recv();
20. you can also use rabbit mq, amazon sqs, and iron mq
21. gearman
22. $client = new GearmanClient(); $client->addServer("127.0.0.1", 4730); $client->setCompleteCallback(function(GearmanTask $task) { // so domething when the task is complete }); $task = $client->addTask("inspect", "some data"); $client->runTasks();
23. $worker = new GearmanWorker(); $worker->addServer("127.0.0.1", 4730); $worker->addFunction("inspect", function(GearmanJob $job) { // do the job, with $job->workload() }); while ($worker->work()) { if ($worker->returnCode() !== GEARMAN_SUCCESS) { // something went wrong } }
24. php.net/manual/en/book.gearman.php
25. async standard library
26. amphp, icicle, react...
27. explicit event loops
28. use Icicle\Http\Message\BasicResponse; use Icicle\Http\Message\Request; use Icicle\Http\Server\RequestHandler; use Icicle\Socket\Socket; use Icicle\Stream\MemorySink; class MyRequestHandler implements RequestHandler { public function onRequest(Request $request, Socket $socket): Generator { $stream = new MemorySink(); yield from $stream->end("hello world"); yield new BasicResponse(200, [ "Content-Type" => "text/plain", "Content-Length" => $stream->getLength(), ], $stream); } public function onError(int $code, Socket $socket): Generator { yield new BasicResponse($code); } }
29. use Icicle\Http\Server\Server; use Icicle\Loop; $server = new Server(new MyRequestHandler()); $server->listen(81, "127.0.0.1"); $server->listen(82, "127.0.0.1"); Loop\run();
30. server { listen 80; server_name acme.com; location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $http_host; proxy_pass http://127.0.0.1:81; } }
31. use Icicle\Http\Message\Request; use Icicle\Http\Message\Response; use Icicle\Socket\Socket; use Icicle\WebSocket\Application; use Icicle\WebSocket\Connection; use Icicle\WebSocket\Message; class MyApplication implements Application { public function onHandshake(Response $response, Request $request, Socket $socket): Generator { yield $response; } public function onConnection(Connection $connection): Generator { $iterator = $connection->read()->getIterator(); while (yield $iterator->isValid()) { // $iterator->getCurrent() + $connection->send(new Message()) } $connection->close(); } }
32. use Icicle\Http\Message\BasicResponse; use Icicle\Http\Message\Request; use Icicle\Http\Server\RequestHandler; use Icicle\Socket\Socket; use Icicle\WebSocket\Application; use Icicle\WebSocket\Server\Server; class MyRequestHandler implements RequestHandler { private $application; public function __construct(Application $application) { $this->application = $application; } public function onRequest(Request $request, Socket $socket): Generator { yield $this->application; } public function onError($code, Socket $socket): Generator { yield new BasicResponse($code); } } $server = new Server(new MyRequestHandler(new MyApplication()));
33. 1. corou'nes 2. promises + observables 3. streams 4. filesystem 5. dns 6. threading + forking
34. icicle.io/docs
35. examples
36. github.com/asyncphp
37. why [i think] you should try async
38. value for you
39. value for the community
40. I don't get why people can't deal with async environments. Cause, for me, it's like the dream. — @dead_lugosi
41. want to know more about this stuff?
42. assertchris.io/asyncphp
43. If I said to you in 2000 that one day PHP would have any kind of strict mode, you would have laughed in my face.
44. It isn't the year 2000 any more ... it's nature is, to a large degree, dictated by RFCs that pass the vote ...
45. And while you will hear people use it's nature to argue against certain features, those voices aren't enough to stand in the way of progress. — @krakjoe
46. joind.in/talk/84ad6
47. thanks! twi$er.com/assertchris