Create a PHP worker using the following guide.

use Spiral\RoadRunner;
use Nyholm\Psr7;

include "vendor/autoload.php";

$worker = RoadRunner\Worker::create();
$psrFactory = new Psr7\Factory\Psr17Factory();

$psr7 = new RoadRunner\Http\PSR7Worker($worker, $psrFactory, $psrFactory, $psrFactory);

while (true) {
    try {
        $request = $psr7->waitRequest();

        if (!($request instanceof \Psr\Http\Message\ServerRequestInterface)) { 
	    // Termination request received
            break;
        }
    } catch (\Throwable) {
        $psr7->respond(new Psr7\Response(400)); // Bad Request
        continue;
    }

    try {
        // Application code logic
        $psr7->respond(new Psr7\Response(200, [], 'Hello RoadRunner!'));
    } catch (\Throwable) {
        $psr7->respond(new Psr7\Response(500, [], 'Something Went Wrong!'));
    }
}

To write a configuration file explaining how RoadRunner should run your application:

server: command: "php psr-worker.php" http: address: 0.0.0.0:8080 pool: num_workers: 4

See full configuration example here.

RoadRunner application can be started by calling a simple command from the root of your PHP application:

$ rr serve

You can also start RoadRunner using configuration from custom location:

$ rr serve -c ./app/.rr.yaml

To reload all RoadRunner services:

$ rr reset

To reload silently:

$ rr reset --silent

To reset only particular plugins:

$ rr reset http

To run golang pprof server (debug mode):

$ rr serve -d -c .rr.yaml

To view the status of all active workers in an interactive mode:

$ rr workers -i -c .rr.yaml

RR support .env files. To read environment variables from the .env file, use the --dotenv CLI command:

$ rr serve --dotenv .env -c .rr.yaml

See more about console commands here.