symfony - DBAL - symfony2 bind a value for LIKE operator -

i trying execute sql query involves operator dbal

basically query following:

public function getsubsitebyhostname($host){      $sql = "select a.id, a.title, a.layout_id     sites     left join layouts b     on a.layout_id = b.id     a.baseurl '%:host%'     ";      $stmt = $this->db->prepare($sql);     $stmt->bindvalue("host", $host);     $stmt->execute();      return $stmt->fetch(); }    sqlstate[42000]: syntax error or access violation: 1064 have error in sql syntax; check manual corresponds mysql server version right syntax use near '%'hostname.dev'% 

obiviously i'm doing wrong bindvalue

the answer easier thought, adam suggested

$stmt->bindvalue("host", '%'.$host.'%');