emit()
emit(\Psr\Http\Message\ResponseInterface $response)
Emit a response.
Emits a response, including status line, headers, and the message body, according to the environment.
Implementations of this method may be written in such a way as to have side effects, such as usage of header() or pushing output to the output buffer.
Implementations MAY raise exceptions if they are unable to emit the response; e.g., if headers have already been sent.
Parameters
| \Psr\Http\Message\ResponseInterface | $response |