根据数组对数组进行排序

Question

我有一个数组,示例:

$array {
 [0] {
   [something]=1;
   [something2]=2;
     } 
 [1] {
   [something]=2;
   [something2]=4;
     }
 [2] {
   [something]=5;
   [something2]=2;
     }
}

我想根据关键字订购数组;

所以它看起来像:

$array {
 [0] {
   [something]=5;
   [something2]=2;
     } 
 [1] {
   [something]=2;
   [something2]=4;
     }
 [2] {
   [something]=1;
   [something2]=2;
     }
}

Answer 1

function compare($x, $y) {
    return $x['something'] - $y['something'];
}

usort($input_array, 'compare');

你需要使用usort()类似于上面的.