non si collega database PDOException: could not find driver in D:\home\uniter-arese.it\httpdocs\CdA\php\PDOconfig.php:20 Stack trace: #0 D:\home\uniter-arese.it\httpdocs\CdA\php\PDOconfig.php(20): PDO->__construct(':dbname=;host=', NULL, NULL, Array) #1 D:\home\uniter-arese.it\httpdocs\CdA\php\PDOconfig.php(38): PDOconfig->__construct(NULL) #2 D:\home\uniter-arese.it\httpdocs\CdA\attivita.php(34): PDOconfig\UniterPDO->__construct() #3 {main}