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# krsort

(PHP 3 >= 3.0.13, PHP 4, PHP 5)

krsort -- Sort an array by key in reverse order

## Description

bool krsort ( array &array [, int sort_flags] )

Sorts an array by key in reverse order, maintaining key to data correlations. This is useful mainly for associative arrays.

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範例 1. krsort() example

`<?php $fruits = array("d"=>"lemon", "a"=>"orange", "b"=>"banana", "c"=>"apple"); krsort($fruits); foreach ($fruits as $key => $val) { echo "$key = $val\n"; } ?>`

The above example will output:

    d = lemon
    c = apple
    b = banana
    a = orange

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

See also asort(), arsort(), ksort(), sort(), natsort(), and rsort().

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