巧妙的运用group,count,order有利于统计

$aAwardMem = $this->dao_raward->getAwardAndMem($where,array('award_cat asc','award_level asc'),false,false,false,'award_cat,award_level,count(id) as count',false,array('award_cat','award_level'));

//$where = false, $order = 'id ASC', $pagesize = false, $offset = false, $count = false, $from = false, $join = false, $group = false

这里先按照award_cat排序，再按照award_level排序。

完了之后，对award_cat进行group操作，cat是类别，和award_level进行group操作。

这样就将cat，level剥离出来了。

成了一小组，一小组的数据，并且是有序的数据。

最后获取自己想要的字段award_cat,award_level,以及他们的各小组的数量。count(id)。

能够灵活的运用好他们，可以省去很多php的逻辑处理。

数据如下：

Array
(
    [0] => Array
        (
            [award_cat] => 1
            [award_level] => 1
            [count] => 5
        )

    [1] => Array
        (
            [award_cat] => 2
            [award_level] => 1
            [count] => 11
        )

    [2] => Array
        (
            [award_cat] => 2
            [award_level] => 2
            [count] => 6
        )

    [3] => Array
        (
            [award_cat] => 2
            [award_level] => 3
            [count] => 7
        )

    [4] => Array
        (
            [award_cat] => 2
            [award_level] => 4
            [count] => 10
        )

    [5] => Array
        (
            [award_cat] => 2
            [award_level] => 5
            [count] => 10
        )

    [6] => Array
        (
            [award_cat] => 2
            [award_level] => 6
            [count] => 9
        )

    [7] => Array
        (
            [award_cat] => 2
            [award_level] => 7
            [count] => 7
        )

    [8] => Array
        (
            [award_cat] => 3
            [award_level] => 2
            [count] => 5
        )

    [9] => Array
        (
            [award_cat] => 4
            [award_level] => 3
            [count] => 5
        )

    [10] => Array
        (
            [award_cat] => 5
            [award_level] => 4
            [count] => 4
        )

    [11] => Array
        (
            [award_cat] => 6
            [award_level] => 6
            [count] => 6
        )

)