uksort < PHP

The uksort function sorts an array by keys using a user-defined comparison function.

    
    function my_sort($x, $y) {
        if ($x == $y)
            return 0;

        return ($x > $y) ? -1 : 1;
    }

    $languages = array(
                    "10" => "javascript",
                    "20" => "php",
                    "60" => "vbscript",
                    "40" => "jsp"
                  );

    uksort($languages, "my_sort");

    print_r($names);

    // Array (
    //    [10] => javascript
    //    [20] => php
    //    [40] => jsp
    //    [60] => vbscript
    // )