Question

我有这个数组：

Array
(
    [datas] => Array
        (
            [General] => Array
                (
                    [0] => Array
                        (
                            [id] => logo
                            [size] => 10
                        )
                )
            [Rooms] => Array
                (
                    [0] => Array
                        (
                            [id] => room_1
                            [size] => 8
                        )

                    [1] => Array
                        (
                            [id] => room_2
                            [size] => 8
                        )

                    [2] => Array
                        (
                            [id] => room_3
                            [size] => 8
                        )
                )
        )
)

当我收到这样的信息时，我需要更新它：

$key = 'room_3';
$toChange = '9';

因此，在我的数组中，我想更改size的{{1}}。

我将始终编辑相同的元素（即room_3）。

我尝试了什么：

size

但它不起作用......

你能帮我吗？

感谢。

Answer 1

function getDatas($datas, $got, $to_find) {
    foreach($datas['datas'] as $key => $rows) {
        foreach($rows as $number => $row) {
            if($row['id'] == $got) {
                // u can return new value
                return $row['size'];
                // or you can change it and return update array
                $datas['dates'][$key][$number]['size'] = $to_find; // it should be sth like $new value
                return $datas;
            }
        }
    }
}

Answer 2

这是一个三维数组，如果你想改变它，可以这样做：

$key = 'room_3';
$toChange = '9';

$array['datas'] = getRooms($array['datas'], $key, $toChange);

function getRooms($rooms, $key, $toChange) {
    foreach($rooms as $k1=>$v1) foreach ($v1 as $k2=>$v2) {
        if ($v2['id'] == $key)) {
           $rooms[$k1][$k2]['size'] = $toChange;
        }
    }
    return $rooms;
}
print_r($array);

Answer 3

function changeRoomSize (&$datas, $roomID, $newSize ){

        //assuming that you have provided valid data in $datas array

        foreach($datas['datas']['Rooms'] as &$room){
            if($room['id'] == $roomID){

                $room['size'] = $newSize;
                break;//you can add break to stop looping after the room size is changed
            }
        }

    }
    //--- > define here your array with data

    //and then call this function
    changeRoomSize($data,"room_3",9);

    //print the results
    var_dump($data);

使用PHP中的新值编辑数组

3 个答案: