增加返回多数据集

 public function queryAllRows($sql, $parmas = array())

{

$result = $this->query($sql, $parmas);



$rows = array();

$rowcount = 0;

if ($result) {

do {

$result->setFetchMode(PDO::FETCH_ASSOC);

foreach ($result as $row) {

if (isset($row[$this->primary])) {

if (!is_string($this->access)) {

$this->access[$this->primary] = true;

}

}

$rows[$rowcount][] = $row;  //修正了这句增加了[]

}

$rowcount++;

} while ($result->nextRowset());

}



return $rows;

}