At 05:40 PM 7/30/2006, Peter Lauri wrote:
function cmpcountry($a, $b)
{
$country1 = $a['country'];
$country2 = $b['country'];
if($country1=='') return 1;
else return ($country1 < $country2) ? -1 : 1;
}
Good call, Peter; my suggestion was unnecessarily fat.
Weetat, both Peter's and my solutions do work -- see here:
http://juniperwebcraft.com/test/sortTest.php
source code:
http://juniperwebcraft.com/test/sortTest.txt
I could make that last statement just a bit simpler:
function cmpcountry($a, $b)
{
$country1 = ($a['country'] == '') ? "zzzzzzz" : $a['country'];
$country2 = ($b['country'] == '') ? "zzzzzzz" : $b['country'];
return ($country1 > '' && $country1 < $country2) ? -1 : 1;
}
I'm curious to know why none of this code works properly if it
directly compares ($a['country'] < $b['country']). Why are the
intermediate variables necessary?
Paul
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