PHP Multidimension array sorting - php

Question

I am trying to sort this multidimensional array based on [sort_order].
I have searched a lot of topics related with no sucess.
Can I have a little help here?
The objective is to sort the array so I can get the array on the following order:
[post_images]
[localizacao]
[post_title]
[category]
Array
(
[[#taxonomy_name#]] => Array
(
[post_title] => Array
(
[name] => post_title
[show_in_email] => 1
[sort_order] => 3
[options] => Array
(
[0] =>
)
)
[post_images] => Array
(
[name] => post_images
[is_active] => 1
[show_on_listing] => 1
[show_on_detail] => 1
[sort_order] => 1
[options] => Array
(
[0] =>
)
)
[category] => Array
(
[name] => category
[is_require] => 1
[is_active] => 1
[show_on_listing] => 1
[show_on_detail] => 1
[show_in_email] => 1
[sort_order] => 4
[options] => Array
(
[0] =>
)
)
[localizacao] => Array
(
[name] => localizacao
[label] => Localização
[htmlvar_name] => localizacao
[sort_order] => 2
[options] => Array
(
[0] =>
)
)
)
)

Answer 1

You may find usort useful, which allows you to sort with a callback function like so:
// The function which will do your comparisons:
function sortOrderCompare ($a, $b) {
$aOrder = $a['sort_order'];
$bOrder = $b['sort_order'];
if ($aOrder == $bOrder) {
// A and B have the same order
return 0;
}else if ($aOrder < $bOrder) {
//A comes before B
return -1;
}else{
// B comes before A
return 1;
}
}
usort($array['[#taxonomy_name#]'], "sortOrderCompare");

Answer 2

You could use array_multisort
Depending on your array structure it looks like this:
foreach( $posts as $post=>$row )
{
$sort_order[$post] = $row['sort_order'];
}
array_multisort( $sort_order, SORT_ASC, $posts );