How to sort a multidimensional array by a certain key?
This should be really simple, but what is the way to go on this. I want to sort an multidimensional array by a key, like this:
Array (
[0] => Array
(
[iid] => 1
[invitee] => 174
[nid] => 324343
[showtime] => 2010-05-09 15:15:00
[location] => 13
[status] => 1
[created] => 2010-05-09 15:05:00
[updated] => 2010-05-09 16:24:00
)
[1] => Array
(
[iid] => 1
[invitee] => 220
[nid] => 21232
[showtime] => 2010-05-09 15:15:00
[location] => 12
[status] => 0
[created] => 2010-05-10 18:11:00
[updated] => 2010-05-10 18:11:00
))
Say i want to sort this by [status], how would I achieve this? Thanks in advance!
//define a comparison function
function cmp($a, $b) {
if ($a['status'] == $b['status']) {
return 0;
}
return ($a['status'] < $b['status']) ? -1 : 1;
}
usort($array, "cmp");
That should do what you want, you can alter the comparison function to sort on whatever key you want.
Try this : Using array_multisort
$sort = array();
foreach($your_array as $k=>$v) {
$sort['status'][$k] = $v['status'];
}
array_multisort($sort['status'], SORT_DESC, $your_array);
echo "<pre>";
print_r($your_array);
Ref: http://php.net/manual/en/function.array-multisort.php