$this->pdo = new PDO($dsn, $user, $password, array(PDO::ATTR_PERSISTENT => true));
$stmt = $this->pdo->prepare("set names utf8");
$stmt->execute();
$this->pdo = new PDO($dsn, $user, $password, array(PDO::ATTR_PERSISTENT => true));
$stmt = $this->pdo->prepare("set names utf8");
$stmt->execute();