array_sort php

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);
   foreach ($keysvalue as $k=>$v){
      $new_array[$k] = $arr[$k];
   }
   return $new_array; 
}