Sort an associative array with custom order [duplicate] - php

Question

This question already has answers here:
How can I sort arrays and data in PHP?
(14 answers)
Closed 5 years ago.
How can we sort an associative array with custom order?
My array look like this
Array
(
[pa_color] => Array
(
[name] => pa_color
[value] =>
[position] => 0
[is_visible] => 1
[is_variation] => 1
[is_taxonomy] => 1
)
[pa_dimension] => Array
(
[name] => pa_dimension
[value] =>
[position] => 1
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
[pa_travel-duration] => Array
(
[name] => pa_travel-duration
[value] =>
[position] => 2
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
[pa_travel-type] => Array
(
[name] => pa_travel-type
[value] =>
[position] => 3
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
[pa_travelling-with] => Array
(
[name] => pa_travelling-with
[value] =>
[position] => 4
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
[pa_volume] => Array
(
[name] => pa_volume
[value] =>
[position] => 5
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
[pa_weight] => Array
(
[name] => pa_weight
[value] =>
[position] => 6
[is_visible] => 1
[is_variation] => 0
[is_taxonomy] => 1
)
)
and i want this array is like pa_travel-duration first pa_volume second ?? I know there is a native php function usort but i could not understand this.

Answer 1

This will do the work, but im pretty sure there's much better ways to do it:
Code:
$array = array("pa_color" => "color",
"pa_dimension" => "dimension",
"pa_travel-duration" => "Random Stuff: " . rand(100,999),
"pa_volume" => "volumen"
);
$tmp = array("pa_travel-duration" => $array["pa_travel-duration"],
"pa_volume" => $array["pa_volume"],
);
unset($array["pa_travel-duration"], $array["pa_volume"]);
$array = array_merge($tmp,$array);
print_r($array);
Result:
Array
(
[pa_travel-duration] => Random Stuff: 127
[pa_volume] => volumen
[pa_color] => color
[pa_dimension] => dimension
)
Take care because if the array doesn't have the proper key it will throw an error, you need to add few checks there.

Answer 2

$sort_by = array('pa_travel-duration', 'pa_volume', 'pa_color','pa_dimension','pa_travel-type','pa_travelling-with','pa_weight');
$temp_arr = array();
foreach ($sort_by as $key) {
$temp_arr[$key] = $data[$key];
}
$data = $temp_arr;
echo '<pre>'; print_r($data);
Define your order in $sort_by array