Curl::stream_body( resource|CurlHandle $handle, string $data ): integer

537	public function stream_body($handle, $data) {538		$this->hooks->dispatch('request.progress', [$data, $this->response_bytes, $this->response_byte_limit]);539		$data_length = strlen($data);540 541		// Are we limiting the response size?542		if ($this->response_byte_limit) {543			if ($this->response_bytes === $this->response_byte_limit) {544				// Already at maximum, move on545				return $data_length;546			}547 548			if (($this->response_bytes + $data_length) > $this->response_byte_limit) {549				// Limit the length550				$limited_length = ($this->response_byte_limit - $this->response_bytes);551				$data           = substr($data, 0, $limited_length);552			}553		}554 555		if ($this->stream_handle) {556			fwrite($this->stream_handle, $data);557		} else {558			$this->response_data .= $data;559		}560 561		$this->response_bytes += strlen($data);562		return $data_length;563	}