SwooleResponseEmitter

Writes the response to Swoole’s per-request response object.

Constructed per request, unlike the SAPI and RoadRunner emitters, because the thing being written to is the current request’s response.

Swoole’s write() returning false is this runtime’s client-disconnect signal — the equivalent of connection_aborted() under a SAPI, which always reports 0 under the CLI and so cannot be used here. Without it an endless SSE generator would keep producing events for a client that has already gone.

Synopsis

final class SwooleResponseEmitter implements ResponseEmitterInterface

Implements	ResponseEmitterInterface
Source	SwooleResponseEmitter.php

Constructor

__construct()

public function __construct(SwooleResponseWriterInterface $writer): mixed

Parameter	Type	Description
$writer	SwooleResponseWriterInterface

Returns mixed

Methods

Method	Description
emit(ResponseInterface $response): void	Writes status, headers and body onto Swoole’s response object.
supportsStreaming(): bool	Always true: Swoole’s write() delivers a chunk without buffering the whole body.

emit()

public function emit(ResponseInterface $response): void

Writes status, headers and body onto Swoole’s response object.

A header with several values is passed as an array so repeated names (Set-Cookie) survive. For an SseStream body, Content-Length is dropped and the body is written chunk by chunk until the stream ends or the client goes away, with a final end() closing the response either way.

Parameter	Type	Description
$response	ResponseInterface

supportsStreaming()

public function supportsStreaming(): bool

Always true: Swoole’s write() delivers a chunk without buffering the whole body.

Returns bool