connect = $connect; } public function beginTransaction() { $this->connect->beginTransaction(); } public function commit() { $this->connect->commit(); } function rollback() { $this->connect->rollback(); } public function prepare($sql) { return $this->connect->prepare($sql); } function query($sql) { return $this->connect->query($sql); } function lastInsertId() { return $this->connect->lastInsertId(); } }