Sort specified items in a two-dimensional array

/*
$array_name: the incoming array;
$row_id: the items in the array that you want to sort;
$order_type: the sorting method, ASC or DESC;
*/
 function array_sort($ array_name,$row_id,$order_type){
 $array_temp=array();
 foreach($array_name as $key=>$value){//Loop one level;
 $array_temp[$key]=$value[$ row_id];//Create a new one-dimensional array, the index value uses the index value of the two-dimensional array; the value is the value of the item to be compared in the two-dimensional array;
 }
 if ($order_type==="ASC"){
 asort($array_temp);
 }else{
 arsort($array_temp);
 }
 $result_array=array();
 foreach($array_temp as $key=>$value){//Filtered array Traverse;
 $result_array[]=$array_name[$key];//Create a new result array, change the key value order of the original array and assign it to the result array (the original array remains unchanged);
 }
 return $result_array ;
 }
//The following is the test
 $arr=array(array('num'=>7,'value'=>4),
 array('num'=>3,'value'=> ;45),
 array('num'=>38,'value'=>27));
 $sortarr=array_sort($arr,'value','ASC');
 print_r($sortarr);
?>