- var_dump: documentation ( source)
- arsort: documentation ( source)
- uksort: documentation ( source)
<?php
$a=['apples'=>10,'bananas'=>15,'carrots'=>100,'oranges'=>25];
arsort($a);
var_dump($a);
uksort($a, function ($a, $b) { return $b == 'bananas' ? 1 : 0; });
var_dump($a);