[Location]　FILE: /www/wwwroot/stddos/app/mvc/mvc_pdo.php　LINE: 26

<?php 
22:                      $this->get_dsn(),
23:                      $this->dbinfo['user'],
24:                      $this->dbinfo['passwd'],
25:                      $option
26:                  ); /*the problem is here!!!*/
27:                  parent::setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
28:              }catch(Exception $e) {
29:                  throw new Exception("Error NO:".$e->getCode().",Error:".$e->getMessage());
30:              }
31:        }
...*/

[Info]

E_WARNING : PDO::__construct(): MySQL server has gone away

[Trace]