CODEWITHSUNDEEP
phpsorting
exim
exim

Reputation: 626

reverse asort result

very simple but confused me! here is it:

$command[] = "30";
$command[] = "20";
$command[] = "10";
$command[] = "5";
$command[] = "1";

asort($command);

print_r($command);

return:

Array ( [0] => Array ( [0] => 30 [1] => 20 [2] => 10 [3] => 5 [4] => 1 ) )

but I want:

Array ( [0] => Array ( [0] => 1 [1] => 5 [2] => 10 [3] => 20 [4] => 30 ) )

exact code I use:

$cmd_id = array();

foreach ($_POST as $k => $v)
{
    if($k=='cmd_id' && $v>0)
        $cmd_id[] = $v;
}

form is multiple checkboxes:

<input type="checkbox" name="cmd_id[]" .........

Upvotes: 0

Views: 2847

Answers (3)

Maks
Maks

Reputation: 82

You can use arsort - just reverse version of asort

Upvotes: 3

Xyz
Xyz

Reputation: 6013

Original anwer: use arsort.

--

Update: asort is for maintaining the indexes, what you want is the normal sort(). Also, see Sorting Arrays in the php manual

--

Update 2: The issue is with how you populate your array. Instead do this:

if (!empty($_POST['cmd_id'])) {
    foreach ($_POST['cmd_id') {
        $cmd_id[] = intval($v); # Preferably force ints if you expect ints
    }
} else { /* Handle use input failure accordingly */ }

Upvotes: 2

rink.attendant.6
rink.attendant.6

Reputation: 46258

Your value seems to be an array of values. I'm assuming that in your HTML, you have something like name="cmd_id[]" in the form. Therefore, the HTTP POST variable cmd_id will arrive to PHP in array form.

$cmd_id = array();

foreach ($_POST['cmd_id'] as $value) {
    if($value > 0) {
        $cmd_id[] = $value;
    }
}

sort($cmd_id, SORT_NATURAL);

print_r($cmd_id);

Upvotes: 1

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