在特定元素上重新排列数组

Question

我需要将数组项的顺序更改为预定义顺序。

原数组是

$order = array(3136,3121,3147,3125); 

Array 
(
    [3121] => Array 
     (
      [0] => 311 
      [1] => 311> 
      [2] => First Level 
     ) 

    [3125] => Array 
     (
      [0] => 312 
      [1] => 312> 
      [2] => Ids 
     ) 

    [3136] => Array 
     (
      [0] => 313 
      [1] => 313> 
      [2] => Insurance 
     ) 

    [3147] => Array 
     (
      [0] => 314 
      [1] => 314> 
      [2] => Property 
     ) 
) 

需要产生象下面，

Array 
(
    [3136] => Array 
     (
      [0] => 313 
      [1] => 313> 
      [2] => Insurance 
     ) 
    [3121] => Array 
     (
      [0] => 311 
      [1] => 311> 
      [2] => First Level 
     ) 
    [3147] => Array 
     (
      [0] => 314 
      [1] => 314> 
      [2] => Property 
     ) 
    [3125] => Array 
     (
      [0] => 312 
      [1] => 312> 
      [2] => Ids 
     ) 

) 

基地将数组元素的键，经过3136元素3121将被推向然后3147等

Answer 1

只是猜测：

$order = array(3136,3121,3147); 
$new_arr =array(); 
foreach ($order as $key){ 
    if ($old_array[$key]) 
     $new_arr[$key]=$old_array[$key]; 
}