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ksort

(PHP 3, PHP 4 )

ksort -- Sort an array by key

Description

int ksort ( array array [, int sort_flags])

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

Example 1. ksort() example

<?php
$fruits = array("d"=>"lemon", "a"=>"orange", "b"=>"banana", "c"=>"apple");
ksort($fruits);
reset($fruits);
while (list($key, $val) = each($fruits)) {
    echo "$key = $val\n";
}
 ?>

This example would display:

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

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

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

Note: The second parameter was added in PHP 4.

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