Emitting psr-7 responses.

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1.0.0 2019-09-12 21:29 UTC


Emits a Response to the PHP Server API.

68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f6e6172726f77737061726b2f687474702d656d69747465722e7376673f7374796c653d666c61742d737175617265 68747470733a2f2f696d672e736869656c64732e696f2f62616467652f7068702d253545372e322e302d3838393242462e7376673f7374796c653d666c61742d737175617265 68747470733a2f2f696d672e736869656c64732e696f2f7472617669732f727573742d6c616e672f727573742f6d61737465722e7376673f7374796c653d666c61742d737175617265 68747470733a2f2f696d672e736869656c64732e696f2f636f6465636f762f632f6769746875622f6e6172726f77737061726b2f687474702d656d69747465722f6d61737465722e7376673f7374796c653d666c61742d737175617265 68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4d49542d627269676874677265656e2e7376673f7374796c653d666c61742d737175617265

The available emitter implementations are:

- `Narrowspark\HttpEmitter\SapiEmitter`
- `Narrowspark\HttpEmitter\SapiStreamEmitter`.

Note: Each use the native PHP functions header() and echo in order to emit the response.

Note: If headers have been sent, or the output buffer exists and has a non-zero length, the emitters raise an exception, as mixed PSR-7 / output buffer content creates a blocking issue.

If you are emitting content via echo, print, var_dump, etc., or not catching PHP errors / exceptions, you will need to either fix your application to always work with a PSR-7 response. Or provide your own emitters that allow mixed output mechanisms.


composer require narrowspark/http-emitter


How to use the SapiEmitter:


use Narrowspark\HttpEmitter\SapiEmitter;

$response = new \Response();
$response->getBody()->write("some content\n");

$emitter = new SapiEmitter();

If you missing the Content-Length header you can use the \Narrowspark\HttpEmitter\Util\Util::injectContentLength static method.


use Narrowspark\HttpEmitter\Util;

$response = new \Response();

$response = Util::injectContentLength($response);


If you would like to help take a look at the list of issues and check our Contributing guild.

Note: Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.


The Narrowspark http-emitter is open-sourced software licensed under the MIT license