按第二个值排序数组

Question

我有一个数组如下

Array
(
[1845267] => 2
[1845256] => 2
[1845260] => 2
[33636] => 1
[67376] => 2
[73250] => 1
[125313] => 2
[142062] => 1
[342520] => 2
[357301] => 2
[357303] => 1
[404419] => 1
[408957] => 1
[415891] => 2
[455894] => 1
[460119] => 1
[582332] => 1
[582333] => 1
[602886] => 1
)

我的目标是按单位数字对它们进行排序，以便输出将2（或最高数字）放在顶部

Array
(
[1845267] => 2
[1845256] => 2
[1845260] => 2
[415891] => 2
[125313] => 2
[67376] => 2
[342520] => 2
[357301] => 2
[33636] => 1
[73250] => 1
[142062] => 1
[357303] => 1
[404419] => 1
[408957] => 1
[455894] => 1
[460119] => 1
[582332] => 1
[582333] => 1
[602886] => 1
)

Answer 1

尝试使用arsort功能：

  

arsort - 按相反顺序对数组进行排序并维护索引关联

示例：

arsort($array);
// done, $array is now sorted

Answer 2

内置于PHP：http://php.net/manual/en/function.arsort.php

Answer 3

基本上你需要知道php from here

的已知数组函数

和作为
的功能       arsort（$ ARR）;

Answer 4

简单

arsort($array)

http://www.php.net/manual/en/function.arsort.php