PSR-7 implementation

A super lightweight PSR-7 implementation. Very strict and very fast.

Description	Guzzle	Zend	Slim	Nyholm
Lines of code	3 000	3 000	1 700	1 100
PHP7	No	No	No	Yes
PSR-7*	66%	92%	75%	100%
PSR-17	No	No	No	Yes
HTTPlug	No	No	No	Yes
Performance**	1.49x	1x	1.17x	1.69x

* Percent of completed tests in https://github.com/php-http/psr7-integration-tests

** See benchmark at https://github.com/Nyholm/http-client-benchmark (higher is better)

Installation

composer require nyholm/psr7

If you are using Symfony Flex then you get all message factories registered as services.

Usage

The PSR-7 objects do not contain any other public methods then those defined in the PSR-7 specification.

Create objects

Use the PSR-17 factory to create requests, streams, URIs etc.

$factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$request = $factory->createRequest('GET', 'http://tnyholm.se');
$stream = $factory->createStream('foobar');

Sending a request

With HTTPlug or any other PSR-18 (HTTP client) you may send requests like:

composer require kriswallsmith/buzz

$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$psr18Client = new Buzz\Client\Curl([], $psr17Factory);

$request = (new Psr17Factory())->createRequest('GET', 'http://tnyholm.se');
$response = $psr18Client->sendRequest($request);

Create server requests

The nyholm/psr7-server package can be used to create server requests from PHP superglobals.

composer require nyholm/psr7-server

use Nyholm\Psr7\Factory\Psr17Factory;

$psr17Factory = new Psr17Factory();

$creator = new ServerRequestCreator(
    $psr17Factory, // ServerRequestFactory
    $psr17Factory, // UriFactory
    $psr17Factory, // UploadedFileFactory
    $psr17Factory  // StreamFactory
);

$serverRequest = $creator->fromGlobals();

Emitting a response

composer require zendframework/zend-httphandlerrunner

$response = (new Psr17Factory())->createReponse('200', 'Hello world');
(new \Zend\HttpHandlerRunner\Emitter\SapiEmitter())->emit($response);

Our goal

This package is currently maintained by Tobias Nyholm and Martijn van der Ven. They have decided that the goal of this library should be to provide a super strict implementation of PSR-7 that is blazing fast.

The package will never include any extra features nor helper methods. All our classes and functions exist because they are required to fulfill the PSR-7 specification.