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Event-driven, non-blocking I/O with PHP - ReactPHP

 7 years ago
source link: https://reactphp.org/
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ReactPHP: Event-driven, non-blocking I/O with PHP

Event-driven, non-blocking I/O with PHP

ReactPHP is a low-level library for event-driven programming in PHP. At its core is an event loop, on top of which it provides low-level utilities, such as: Streams abstraction, async DNS resolver, network client/server, HTTP client/server and interaction with processes. Third-party libraries can use these components to create async network clients/servers and more. 

$loop = React\EventLoop\Factory::create();

$server = new React\Http\Server($loop, function (Psr\Http\Message\ServerRequestInterface $request) {
    return new React\Http\Message\Response(
        200,
        array(
            'Content-Type' => 'text/plain'
        ),
        "Hello World!\n"
    );
});

$socket = new React\Socket\Server(8080, $loop);
$server->listen($socket);

echo "Server running at http://127.0.0.1:8080\n";

$loop->run();

This simple web server written in ReactPHP responds with "Hello World" for every request.

ReactPHP is production ready and battle-tested with millions of installations from all kinds of projects around the world.

Its event-driven architecture makes it a perfect fit for efficient network servers and clients handling hundreds or thousands of concurrent connections, long-running applications and many other forms of cooperative multitasking with non-blocking I/O operations.

What makes ReactPHP special is its vivid ecosystem with hundreds of third-party libraries allowing you to integrate with many existing systems, such as common network services, database systems and other third-party APIs.

ReactPHP is non-blocking by default. Use workers for blocking I/O.

The event loop is based on the reactor pattern (hence the name) and strongly inspired by libraries such as EventMachine (Ruby), Twisted (Python) and Node.js (V8).

  • Production ready and battle-tested.
  • Rock-solid with stable long-term support (LTS) releases.
  • Requires no extensions and runs on any platform - no excuses!
  • Takes advantage of optional extensions to get better performance when available.
  • Highly recommends latest version of PHP 7+ for best performance and support.
  • Supports legacy PHP 5.3+ and HHVM for maximum compatibility.
  • Well designed and reusable components.
  • Decoupled parts so they can be replaced by alternate implementations.
  • Carefully tested (unit & functional).
  • Promotes standard PSRs where possible for maximum interoperability.
  • Aims to be technology neutral, so you can use your preferred application stack.
  • Small core team of professionals supported by large network of outside contributors.

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