Sort multi-dimensional array by specific key

Question

I have an array:

Array (
    [0] => stdClass Object (
        [user_id] => 1
        [ID] => 1
        [user_login] => admin
        [display_nam         


        

Answer 1

I have find answer at https://joshtronic.com/2013/09/23/sorting-associative-array-specific-key/

function sortBy($field, &$array, $direction = 'asc')
{
    usort($array, create_function('$a, $b', '
        $a = $a["' . $field . '"];
        $b = $b["' . $field . '"];

        if ($a == $b)
        {
            return 0;
        }

        return ($a ' . ($direction == 'desc' ? '>' : '<') .' $b) ? -1 : 1;
    '));

    return true;
}

And now call this function by specific array key.

$newArray = sortBy('display_name',   $blogusers);

And if sort in asc/desc just add one argument,

sortBy('display_name',   $blogusers, 'desc');