Question

我有下面的数组类型，现在我想获得它的子数组

例如，我想获取计数键7和8。该怎么做？有什么解决办法吗？我尝试了但没有成功：（

    Array
(
    [0] => stdClass Object
        (
            [id] => 4
            [Blogdata] => stdClass Object
                (
                    [7] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [blog_id] => 105

                                )
                        )

                    [8] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [blog_id] => 101
                                )
                    )

                )

        )

)


$date_count = array(); 
foreach($FeaturedBlogs as $Key=>$date) {
     foreach($date as $d) {
        $key = array_keys($d);  // get our date
        // echo $key;echo "<br>";
        print_r($d);
        $date_count[$key[0]]++;
     }
}

Answer 1

尝试一下。...

//Count Sub Array
$final_array = [];
$x = 0;
function countSubArray($data)
{
    global $final_array;
    global $x;
    foreach($data as $key)
    {
        if(is_array($key))
        {
            $final_array[$x][0] = "1";
            $final_array[$x][1] = json_encode($key);
            $final_array[$x][2] = count((array)$key);
            $x++;
            countSubArray($key);
        }
        if(is_object($key))
        {
            $final_array[$x][0] = "2";
            $final_array[$x][1] = json_encode($key);
            $final_array[$x][2] = count((array)$key);
            $x++;
            countSubArray($key);
        }
    }

}

// Call Function...
countSubArray($arr);  // what array you count..

// Display Sub Array Count...
$t_count = 0;
foreach($final_array as $d)
{
    if($d[0] == 1)
    {
        echo "Array Count :".$d[2]." Array : ".$d[1]."<br>";
        $t_count++;
    }
}

echo "Total Array Count :".$t_count;

此示例的输出是...

Array
(
    [0] => stdClass Object
        (
            [id] => 4
            [Blogdata] => stdClass Object
                (
                    [7] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [blog_id] => 135
                                )

                        )

                    [8] => Array
                        (
                            [0] => stdClass Object
                                (
                                    [blog_id] => 101
                                )

                        )

                )

        )

)
Array Count :1 Array : [{"blog_id":135}]
Array Count :1 Array : [{"blog_id":101}]
Total Array Count :2

Answer 2

更新后的答案

这将使用一个函数，因为它是自己的回调函数。该函数将循环遍历一个对象或数组，并测试每个元素以查看它是否是另一个对象或数组。

如果确实找到了新的对象或数组，则该函数将再次调用自身以对元素执行相同的操作，从而有效地遍历整个数组。

当找到每个元素的底部时，它将返回计数器的值，该计数器一直在跟踪它遇到了多少个数组。

像这样：

;With departements as
(
    select DZ.Zone_ID, Zone_RecursID, Zone_label, Zone_level, Zone_Active 
    from Dim_Zone DZ
    where Zone_Level = 5 and zone_active=1
), 
regions as
(
    select DZ.Zone_ID, Zone_RecursID, Zone_label, Zone_level, Zone_Active 
    from Dim_Zone DZ
    where Zone_Level = 4 and zone_active=1
), 
superRegions as
(
    select DZ.Zone_ID, Zone_RecursID, Zone_label, Zone_level, Zone_Active 
    from Dim_Zone DZ
    where Zone_Level = 3 and zone_active=1
), 
Country as(
    select DZ.Zone_ID, Zone_RecursID, Zone_label, Zone_level, Zone_Active 
    from Dim_Zone DZ
    where Zone_Level = 2 and zone_active=1
),
continents as
(
    select DZ.Zone_ID, Zone_RecursID, Zone_label, Zone_level, Zone_Active 
    from Dim_Zone DZ
    where Zone_Level = 1 and zone_active=1
)

-- Departments
Select 
    D.Zone_id as departement_ID,
    R.Zone_ID as region_ID,
    SR.Zone_ID as SuperRegion_ID,
    P.Zone_ID as Country_ID,
    C.Zone_ID as continent_id, 

    D.Zone_label as departement_label,
    R.Zone_label as region_label,
    SR.Zone_label as SuperRegion_label,
    P.Zone_label as Country_label,
    C.Zone_label as continent_label,

    case
        when D.Zone_ID is not null then 5
        when R.Zone_ID is not null then 4
        when SR.Zone_ID is not null then 3
        when P.Zone_ID is not null then 2
        when C.Zone_ID is not null then 1
        else 0
    end as dimitem_level
from
    departements AS D
    INNER JOIN regions AS R ON D.Zone_recursID = R.ZoneID
    INNER JOIN superRegions AS SR ON R.Zone_recursID = SR.ZoneID
    INNER JOIN Country AS P ON SR.Zone_recursID = P.ZoneID
    INNER JOIN continents AS C ON P.Zone_recursID = C.ZoneID

UNION ALL

-- Regions
Select 
    NULL as departement_ID,                     -- Department data is NULL
    R.Zone_ID as region_ID,
    SR.Zone_ID as SuperRegion_ID,
    P.Zone_ID as Country_ID,
    C.Zone_ID as continent_id, 

    NULL as departement_label,                  -- Department data is NULL
    R.Zone_label as region_label,
    SR.Zone_label as SuperRegion_label,
    P.Zone_label as Country_label,
    C.Zone_label as continent_label,

    case                                        -- Department case is omitted
        when R.Zone_ID is not null then 4
        when SR.Zone_ID is not null then 3
        when P.Zone_ID is not null then 2
        when C.Zone_ID is not null then 1
        else 0
    end as dimitem_level
from
    regions AS R
    INNER JOIN superRegions AS SR ON R.Zone_recursID = SR.ZoneID
    INNER JOIN Country AS P ON SR.Zone_recursID = P.ZoneID
    INNER JOIN continents AS C ON P.Zone_recursID = C.ZoneID

-- UNION ALL

-- superRegions
-- Country
-- continents

希望有帮助！

在PHP中获取多维子数组计数

2 个答案: