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PHP rsort

PHP original manual for rsort [ show | php.net ]

rsort

(PHP 4, PHP 5, PHP 7)

rsort — Sort an array in reverse order

Description

bool rsort ( array &$array [, int $sort_flags = SORT_REGULAR ] )

This function sorts an array in reverse order (highest to lowest).

Note:

If two members compare as equal, their relative order in the sorted array is undefined.

Parameters

array

The input array.

sort_flags

You may modify the behavior of the sort using the optional parameter sort_flags, for details see sort().

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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.

Notes

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.

See Also