How can I sort this array by the value of the "order" key? Even though the values are currently sequential, they will not always be.
Array
(
[0] => Array
(
[hashtag] => a7e87329b5eab8578f4f1098a152d6f4
[title] => Flower
[order] => 3
)
[1] => Array
(
[hashtag] => b24ce0cd392a5b0b8dedc66c25213594
[title] => Free
[order] => 2
)
[2] => Array
(
[hashtag] => e7d31fc0602fb2ede144d18cdffd816b
[title] => Ready
[order] => 1
)
)
Source: Tips4all
function aasort (&$array, $key) {
ReplyDelete$sorter=array();
$ret=array();
reset($array);
foreach ($array as $ii => $va) {
$sorter[$ii]=$va[$key];
}
asort($sorter);
foreach ($sorter as $ii => $va) {
$ret[$ii]=$array[$ii];
}
$array=$ret;
}
aasort($your_array,"order");
Try a usort: If you don't have access to anonymous functions yet (Before PHP 5.3), you'll have to define a sorting function first:
ReplyDeletefunction sortByOrder($a, $b) {
return $a['order'] - $b['order'];
}
usort($myArray, 'sortByOrder');
I use this function :
ReplyDeletefunction array_sort_by_column(&$arr, $col, $dir = SORT_ASC) {
$sort_col = array();
foreach ($arr as $key=> $row) {
$sort_col[$key] = $row[$col];
}
array_multisort($sort_col, $dir, $arr);
}
array_sort_by_column($array, 'order');
I usually use usort, and pass my own comparison function. In this case, it is very simple:
ReplyDeletefunction compareOrder($a, $b)
{
return $a['order'] - $b['order'];
}
usort($array, 'compareOrder');
$sort = array();
ReplyDelete$array_lowercase = array_map('strtolower', $array_to_be_sorted);
array_multisort($array_lowercase, SORT_ASC, SORT_STRING, $alphabetically_ordered_array);
This takes care of both upper and lower case alphabets.