public function emit(ResponseInterface $response, $maxBufferLevel = null)
{
if (headers_sent()) {
throw new RuntimeException('Unable to emit response; headers already sent');
}
$response = $this->injectContentLength($response);
$this->emitStatusLine($response);
$this->emitHeaders($response);
$this->flush($maxBufferLevel);
$this->emitBody($response);
} /**
* Invocation
*
* @param ServerRequestInterface $request Request
* @param ResponseInterface $response Response
* @param callable $next Next Middleware
* @return ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
{
$response = $next($request, $response);
$emitter = new SapiEmitter();
$emitter->emit($response);
return $response;
}
