Two dimensional array ordering shared by php instances

The PHP1 dimension array can be sorted using functions such as sort(), asort(), arsort().

The sort of the PHP2 dimension array needs to be customized.

The following functions sort a given 2-dimensional array by a specified key value, first looking at the function definition:

function array_sort($arr,$keys,$type='asc'){ 
 $keysvalue = $new_array = array();
 foreach ($arr as $k=>$v){
  $keysvalue[$k] = $v[$keys];
 }
 if($type == 'asc'){
  asort($keysvalue);
 }else{
  arsort($keysvalue);
 }
 reset($keysvalue);
 $index = 0;// Save Subscript Not Used $k, Subscript from 0 Start with $index;
 foreach ($keysvalue as $k=>$v){
  
  $new_array[$index] = $arr[$k];
  $index++;
 }
 return $new_array; 
} 

It can sort 2-D arrays by a specified key value, or it can specify an ascending or descending sort (ascending by default). Example usage:

$array = array(
 array('name'=>'Js','date'=>'2014-05-01'),
 array('name'=>'Sh','date'=>'2014-04-30'),
 array('name'=>'Bj','date'=>'2014-05-02')
);
$arrayList = array_sort($array,'date');
print_r($arrayList);