Zend\Diactoros\Request::__construct PHP Method

    public function __construct($uri = null, $method = null, $body = 'php://temp', array $headers = [])
    {
        $this->initialize($uri, $method, $body, $headers);
    }

 /**
  * @param null|string                     $uri     URI for the request, if any.
  * @param null|string                     $method  HTTP method for the request, if any.
  * @param string|resource|StreamInterface $body    Message body, if any.
  * @param array                           $headers Headers for the message, if any.
  *
  * @throws \InvalidArgumentException for any invalid value.
  */
 public function __construct($uri = null, $method = null, $body = 'php://input', array $headers = [])
 {
     parent::__construct($uri, $method, $body, $headers);
 }