- rsort: documentation ( source)
- var_dump: documentation ( source)
- krsort: documentation ( source)
<?php
$years = array(
1=>"2000",
2=>"2001",
3=>"2002",
4=>"2003",
5=>"2004",
6=>"2005",
7=>"2006",
8=>"2007",
9=>"2008",
10=>"2009",
11=>"2010",
12=>"2011",
13=>"2012",
14=>"2013",
);
var_dump($years);
var_dump(rsort($years));
var_dump(krsort($years));
?>