Question

如何指定数组中应显示的订单商品？

我得到一个3级数组，有点像下面这样：

Array
(
[AK] => Array
    (
        [ACO] => Array
            (
                [FFS] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )
            )
        [ZCO] => Array
            (
                [FFS] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )
            )
        [Other] => Array
            (
                [FFS] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )
            )
    )
[AR] => Array
    (
        [Other] => Array
            (
                [Other] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )
            )
        [ACO] => Array
            (
                [FFS] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )

            )
        [ZCO] => Array
            (
                [FFS] => Array
                    (
                        [Medicaid] => -
                        [CHIP] => -
                    )
            )
    )
)

如何通过第二级命名元素（我需要它们都是[AK]）使它们排序第一个元素[ACO], [ZCO], [Other]？

Answer 1

字典是没有订单的数据结构。

但是 php 默认情况下按顺序迭代项目，以便粘贴哪些元素因此，您可以按必要的顺序简单地重新创建数组或者使用php usort方法编写自定义排序函数。

小例子：

function compare($a, $b) 
{
  $order = array('ACO', 'ZCO', 'Other');
  $ai = array_search($a, $order);
  $bi = array_search($b, $order);
  return $ai<$bi ? -1 : $ai>$bi;
}
$a = array('ZCO'=>1, 'Other'=>1, 'ACO'=>1);
uksort($a, "compare");
print_r($a);

Answer 2

// CREATE THE TEST DATA
$arr = Array
( 'AK' => Array
  ( 'ACO'   => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  , 'ZCO'   => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  , 'Other' => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  )
, 'AR' => Array
  ( 'Other' => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  , 'ACO'   => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  , 'ZCO'   => Array( 'FFS' => Array( 'Medicaid' => '-', 'CHIP' => '-' ) )
  )
)
;

// ACTIVATE THIS TO ANSWER THE QUESTION: DOES IT LOOK RIGHT?
// print_r($arr);

// GET THE ORDER FOR THE [AK] ARRAY
$pat = array_keys($arr['AK']);

// ITERATE OVER THE ARRAY TO PRODUCE THE ORDERED OUTPUT
$out = array();
foreach($arr as $key => $inner)
{
    // SKIP THE SIGNAL ARRAY
    if ($key == 'AK')
    {
        $out[$key] = $inner;
        continue;
    }
    // REORDER THE OTHER ARRAYS
    else
    {
        $temp = array();
        foreach ($pat as $inner_key)
        {
            $temp[$inner_key] = $inner[$inner_key];
        }
        $out[$key] = $temp;
    }
}
// SHOW THE WORK PRODUCT
print_r($out);

PHP数组如何指定应该是什么订单项

2 个答案: