How do I sort an array by key?

The key to sorting by key, is to add a k before the sort to get the function ksort.

This takes the name of the array as the parameter, and works like this:


<?php

$myworld = array("c"=>"better","a"=>"make","b"=>"me");

print_r($myworld);

?>

This prints:

Array
(
[c] => better
[a] => make
[b] => me
)

We need to use ksort to get the right key order:


<?php

$myworld = array("c"=>"better","a"=>"make","b"=>"me");

ksort($myworld);

print_r($myworld);

?>

Array
(
[a] => make
[b] => me
[c] => better
)

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