public function sendContent() { if (!$this->isSuccessful()) { parent::sendContent(); return; } if (0 === $this->maxlen) { return; } $out = fopen('php://output', 'wb'); $in = $this->ioService->getFileInputStream($this->file); stream_copy_to_stream($in, $out, $this->maxlen, $this->offset); fclose($out); }