是否有可能在PHP中对多维数组进行排序以按其他值(即1/0/1/0/1/0)排序 [英] Is it possible to usort a multidimensional array in PHP to be ordered by alternative values, i.e 1/0/1/0/1/0

问题描述

如果您有以下PHP数组:

If you have this PHP array:

$args = array(
    'a' => array(
        'order' => 1,
    ),
    'b' => array(
        'order' => 0,
    ),
    'c' => array(
        'order' => 0,
    ),
    'd' => array(
        'order' => 0,
    ),
    'e' => array(
        'order' => 1,
    ),
);

是否存在一种使用usort(或其他)方法的方法，该方法可以按多维键的值对其进行排序，但是它们不是增量"(0,0,0,1,1)，而是交替(0,1 ，0,1,0).

Is there a way to use usort (or other) method that can order it by multidimensional key's value, but instead of being "incremental" (0,0,0,1,1), they would alternate (0,1,0,1,0).

因此，以上面的数组为例，所需的顺序输出是按备用顺序"键值对键进行排序:

So using the array above as an example, the desired order output is for the keys to be ordered by alternate "order" key value:

$args = array(
    'b' => array(
        'order' => 0,
    ),
    'a' => array(
        'order' => 1,
    ),
    'c' => array(
        'order' => 0,
    ),
    'e' => array(
        'order' => 1,
    ),
    'd' => array(
        'order' => 0,
    ),

);

简而言之；现在，这些键通过称为"order"的键的值进行排序. 并交替显示值，因此分别为:0、1、0、1、0.

In short; The keys are now ordered by the value of the key called "order" and alternate in value, so they are: 0, 1, 0, 1, 0.

我根本想不通！

推荐答案

否，这是不可能的.排序意味着您可以比较两个元素并确定它们应具有的顺序.当您有两个1元素时，查询将失败.

No, it's not possible. Ordering means that you can compare two elements and determine which order they should have. Your query fails at that when you have two 1 elements.

但是，这并不意味着它不能通过算法完成，仅是排序或排序不是正确的工具.

However, that doesn't mean that it can't be done algorithmically, only that sorting or ordering is not the right tool for the job.

这篇关于是否有可能在PHP中对多维数组进行排序以按其他值(即1/0/1/0/1/0)排序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！