PHP rsort() Function

Definition and Usage

The rsort() function sorts an indexed array in descending order.
Tip: Use the sort() function to sort an indexed array in ascending order.

Syntax

rsort(array,sortingtype);

Parameter	Description
array	Required. Specifies the array to sort
sortingtype	Optional. Specifies how to compare the array elements/items. Possible values: 0 = SORT_REGULAR - Default. Compare items normally (don't change types) 1 = SORT_NUMERIC - Compare items numerically hm 2 = SORT_STRING - Compare items as strings 3 = SORT_LOCALE_STRING - Compare items as strings, based on current locale 4 = SORT_NATURAL - Compare items as strings using natural ordering 5 = SORT_FLAG_CASE -

Example 1

Sort the elements of the $numbers array in descending numerical order:

<?php
$numbers=array(4,6,2,22,11);
rsort($numbers);
?>

Example 2

Compare the items numerically and sort the elements of the $cars array in descending order:

<?php
$cars=array("Volvo","BMW","Toyota");
rsort($cars,SORT_NUMERIC);
?>