Sorting of multidimensional arrays in php

$aProduct = array(
    0=> array('goods_id' => 1,'name' =>'iPhone 4','is_group' =>4),
    1=> array('goods_id' => 2,'name' =>'iPhone 4s','is_group' =>6),
    2=> array('goods_id' => 3,'name' =>'iPhone 5','is_group' =>1),
    3=> array('goods_id' => 4,'name' =>'iPhone 5s','is_group' =>1)
);
function arraySort($multi_array,$sort_key,$sort=SORT_ASC){
    if(is_array($multi_array)){
        foreach ($multi_array as $row_array){
            if(is_array($row_array)){
                $key_array[] = $row_array[$sort_key];
            }else{
                return false;
            }
        }
    }else{
        return false;
    }
    array_multisort($key_array,$sort,$multi_array);
    return $multi_array;
}
print_r(arraySort($aProduct,'is_group',SORT_DESC));exit;

http://www.ruesin.com/php/array_multisort-12.html

The above introduces the sorting of multi-dimensional arrays in PHP, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.