indentify name from random string with F3

identify-site.html

<F3:repeat group="{{@DB->result}}" value="{{@item}}">
  <span>{{@item.site}}</span>
</F3:repeat>

index.php

$main->route('GET /v1/user/@rand',
  function() {
  		$rand = F3::get('PARAMS["rand"]');
        DB::sql("SELECT `site` FROM `hashReg` WHERE `key` = '$rand'");
		echo Template::serve('identify-site.html');
	}
);

schema.sql

-- --------------------------------------------------------

--
-- Table structure for table `hashReg`
--

CREATE TABLE IF NOT EXISTS `hashReg` (
  `key` varchar(155) NOT NULL,
  `site` varchar(255) NOT NULL,
  KEY `key` (`key`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

--
-- Dumping data for table `hashReg`
--

INSERT INTO `hashReg` (`key`, `site`) VALUES
('ha0okhj5kka', 'sitename.com');