conn = null; try{ $this->conn = new PDO('mysql:host='.$this->host.';dbname='.$this->db_name, $this->username, $this->password); $this->conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } catch(PDOException $e){ echo 'Connection Error :'.$e->getMessage(); } return $this->conn; } } ?>