(PHP 4, PHP 5, PHP 7, PHP 8)
rsort — Sort an array in descending order
Sorts array in place by values in descending order.
Note:
If two members compare as equal, they retain their original order. Prior to PHP 8.0.0, their relative order in the sorted array was undefined.
Note: This function assigns new keys to the elements in
array. It will remove any existing keys that may have been assigned, rather than just reordering the keys.
Note:
Resets array's internal pointer to the first element.
arrayThe input array.
flags The optional second parameter flags may be used to modify the sorting behavior using these values:
Sorting type flags:
SORT_REGULAR - compare items normally; the details are described in the comparison operators sectionSORT_NUMERIC - compare items numericallySORT_STRING - compare items as stringsSORT_LOCALE_STRING - compare items as strings, based on the current locale. It uses the locale, which can be changed using setlocale()SORT_NATURAL - compare items as strings using "natural ordering" like natsort()SORT_FLAG_CASE - can be combined (bitwise OR) with SORT_STRING or SORT_NATURAL to sort strings case-insensitively Always returns true.
Example #1 rsort() example
<?php
$fruits = array("lemon", "orange", "banana", "apple");
rsort($fruits);
foreach ($fruits as $key => $val) {
echo "$key = $val\n";
}
?>The above example will output:
0 = orange 1 = lemon 2 = banana 3 = apple
The fruits have been sorted in reverse alphabetical order.