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Sorting Array

 
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clj83
Smarty Regular


Joined: 16 Oct 2009
Posts: 44
PostPosted: Wed Apr 02, 2014 8:47 pm    Post subject: Sorting Array Reply with quote
I am creating an array within a template using:

Code:
{foreach from=$items item=node}
{if $node->fielddefs.location01.value != ''}{$locations[] = $node->fielddefs.location01.value}{/if}
{if $node->fielddefs.location02.value != ''}{$locations[] = $node->fielddefs.location02.value}{/if}
{if $node->fielddefs.location02.value != ''}{$locations[] = $node->fielddefs.location03.value}{/if}
{/foreach}


I need to sort the array alphabetically. I have tried the following usort function:

Code:
if (!function_exists('do_sort')) {
    function do_sort($a, $b) {
        return $a > $b;
    }
}
$data = $params['data'];
usort($data, 'do_sort');
$smarty->assign('sorted', $data);


It does now work because my array is not correct I guess? My array looks like this:

Code:
Array
(
    [0] => Any
    [1] => Chamonix
    [2] => Courmayeur
    [3] => Verbier
    [4] => Zermatt
    [5] => Verbier
    [6] => Chamonix
)


Can anyone help me achieve a sorted output?

Thanks
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U.Tews
Administrator


Joined: 22 Nov 2006
Posts: 5068
Location: Hamburg / Germany
PostPosted: Wed Apr 02, 2014 9:18 pm    Post subject: Reply with quote
See http://www.php.net/manual/en/function.usort.php example 1

Your function do_sort must return 0, -1 or 1.
Your function does return true or false

Why don't you use sort?
See http://www.php.net/manual/en/function.sort.php
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clj83
Smarty Regular


Joined: 16 Oct 2009
Posts: 44
PostPosted: Wed Apr 02, 2014 9:25 pm    Post subject: Reply with quote
Thanks for your help. I would use sort if I could figure it out, I am a php newbie. I don't suppose you could help me create the sort function?

Thanks
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clj83
Smarty Regular


Joined: 16 Oct 2009
Posts: 44
PostPosted: Wed Apr 02, 2014 9:27 pm    Post subject: Reply with quote
Actually, think I have it. Does this look right?

Code:
$data = $params['data'];
sort($data);
foreach ($data as $key => $val) {
}
$smarty->assign('sorted', $data);
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U.Tews
Administrator


Joined: 22 Nov 2006
Posts: 5068
Location: Hamburg / Germany
PostPosted: Wed Apr 02, 2014 9:40 pm    Post subject: Reply with quote
you don't need
Code:
foreach ($data as $key => $val) {
}
as it does nothing.
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