createBody($html), $status, $this->injectContentType('text/html; charset=utf-8', $headers) ); } /** * Create the message body. * * @param string|StreamInterface $html * @throws Exception\InvalidArgumentException If $html is neither a string or stream. */ private function createBody($html): StreamInterface { if ($html instanceof StreamInterface) { return $html; } if (! is_string($html)) { throw new Exception\InvalidArgumentException(sprintf( 'Invalid content (%s) provided to %s', is_object($html) ? get_class($html) : gettype($html), self::class )); } $body = new Stream('php://temp', 'wb+'); $body->write($html); $body->rewind(); return $body; } }