Var darboties?!

<?PHP

$memcache = new Memcache;

$memcache->connect('localhost', 11211);

$key = 'post5';

if ($memcache->get($key) == false) 

  {

  $link = mysql_connect('localhost','webskola_janis','WBJ18ans');

  mysql_select_db('webskola_janis_db',$link);

  mysql_query("SET NAMES 'UTF-8';");

  

  $query = mysql_query("SELECT `text` FROM `posts` WHERE `id` = 5;");

 $buffer = array();

while($array = mysql_fetch_array($query)){

$buffer[] = $arr;

}

  

  $memcache->set($key,$array);

  

  }

$data = $memcache->get($key);

echo $data;

?>