PHP rsort() Function – Reverse Sorting an Array

The PHP rsort() function sorts an array in reverse order, from highest to lowest.

Parameters array – The input array passed by reference. sort_flags (optional) – Flags that modify sorting behavior, same as those used by sort(). Default is SORT_REGULAR.

Return value

Returns TRUE on success, or FALSE on failure.

Example

<?php
$fruits = array("lemon", "orange", "banana", "apple");
rsort($fruits);
foreach ($fruits as $key => $val) {
    echo "$key = $val
";
}
?>

After calling rsort(), the $fruits array is sorted in reverse alphabetical order, and the script outputs:

0 = orange
1 = lemon
2 = banana
3 = apple