我有一个数组,例如:
$array = [
'DEF' => [
['type' => 1, 'id' => 1212, 'name' => 'Jane Doe', 'current' => 1],
['type' => 1, 'id' => 3123121, 'name' => 'Door', 'current' => null],
],
'ABC' => [
['type' => 1, 'id' => 1234, 'name' => 'John Doe', 'current' => null],
],
'WW' => [
['type' => 1, 'id' => 1212, 'name' => 'Jane Doe', 'current' => 1],
['type' => 1, 'id' => 3123121, 'name' => 'Door', 'current' => null],
['type' => 1, 'id' => 64646, 'name' => 'Floor', 'current' => null],
]
];
我想按内部数组项的数量( count() )降序(即首先是大多数项)对这个数组进行排序,所以我将拥有这个数组:
[
'WW' => [
['type' => 1, 'id' => 1212, 'name' => 'Jane Doe', 'current' => 1],
['type' => 1, 'id' => 3123121, 'name' => 'Door', 'current' => null],
['type' => 1, 'id' => 64646, 'name' => 'Floor', 'current' => null],
],
'DEF' => [
['type' => 1, 'id' => 1212, 'name' => 'Jane Doe', 'current' => 1],
['type' => 1, 'id' => 3123121, 'name' => 'Door', 'current' => null],
],
'ABC' => [
['type' => 1, 'id' => 1234, 'name' => 'John Doe', 'current' => null],
]
];
谁能建议一种有效的方法来做到这一点?谢谢。