sort array by specific key value alphabetically php code example

Example 1: php sort array by specific key

usort($array, function ($a, $b) {
  return ($a['specific_key'] < $b['specific_key']) ? -1 : 1;
});

Example 2: php order array by specific key

function cmp($a, $b)
    {
        return strcmp($a->display_name, $b->display_name);
    }

    usort($blogusers, "cmp");

    foreach ($blogusers as $bloguser)
    {
        ...