public static function getInstance() { if (is_null(self::$instance)) { self::$instance = new self(); } return self::$instance; }
/** * Connecta com o banco de dados pattern singleton. * Retorna um objeto PDO! */ private static function getInstance() { try { if (!isset(self::$instance)) { $dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME; $options = [PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES UTF8']; self::$instance = new PDO($dsn, DB_USER, DB_PASS, $options); self::$instance->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); self::$instance->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ); } } catch (PDOException $ex) { PHPErro($ex->getCode(), $ex->getMessage(), $ex->getFile(), $ex->getLine()); die; } return self::$instance; }