php 배열값 역순 출력 rsort

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.