Php/docs/function.rsort
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rsort
(PHP 4, PHP 5, PHP 7)
rsort — Sort an array in reverse order
Description
rsort
( array &$array
[, int $flags = SORT_REGULAR
] ) : bool
This function sorts an array in reverse order (highest to lowest).
Note:
If two members compare as equal, their relative order in the sorted array is undefined.
Parameters
array- The input array.
flags- You may modify the behavior of the sort using the optional parameter
flags, for details see sort().
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 rsort() example
<?php$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 functionassigns 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
- arsort() - Sort an array in reverse order and maintain index association
- krsort() - Sort an array by key in reverse order
- The comparison of array sorting functions
