Sort php different format multidimensional array on key - php

Question

I have an array like this
Array
(
[name] => Array
(
[0] => img/test240.jpg
[1] => img/cs1.jpg
[2] => img/cs2.jpg
[3] => img/cs3.jpg
)
[link] => Array
(
[0] => http://google.com
[1] => http://google.com
[2] => http://facebook.com
[3] => http://orkut.com
)
[order] => Array
(
[0] => 4
[1] => 1
[2] => 2
[3] => 3
)
)
I need to sort it by order WHICH IS KEY in Multidimensional array. Here is output.
Array
(
[name] => Array
(
[1] => img/cs1.jpg
[2] => img/cs2.jpg
[3] => img/cs3.jpg
[0] => img/test240.jpg
)
[link] => Array
(
[1] => http://google.com
[2] => http://facebook.com
[3] => http://orkut.com
[0] => http://google.com
)
[order] => Array
(
[1] => 1
[2] => 2
[3] => 3
[0] => 4
)
)
In this you can see when order is sorted name and link is also sorted according to the order. How can i do this with php.

Answer 1

You have to use array_map() in conjunction with sort().
If you want to preserve actual element order you have to use asort() instead sort().
Try this code:
$arr = array(
'name' => array(
0 => 'img/test240.jpg',
1 => 'img/cs1.jpg',
2 => 'img/cs2.jpg',
3 => 'img/cs3.jpg',
),
'link' => array(
0 => 'http://google.com',
1 => 'http://google.com',
2 => 'http://facebook.com',
3 => 'http://orkut.com',
),
'order' => array(
0 => 4,
1 => 1,
2 => 2,
3 => 3,
),
);
function mysort($a) {
asort($a);
return $a;
}
$arr = array_map('mysort', $arr);
print_r($arr);
Demo.

Answer 2

Try this, it uses array_multisort:
$array holds:
array (size=3)
'name' =>
array (size=4)
0 => string 'img/test240.jpg' (length=15)
1 => string 'img/cs1.jpg' (length=11)
2 => string 'img/cs2.jpg' (length=11)
3 => string 'img/cs3.jpg' (length=11)
'link' =>
array (size=4)
0 => string 'http://google.com' (length=17)
1 => string 'http://google.com' (length=17)
2 => string 'http://facebook.com' (length=19)
3 => string 'http://orkut.com' (length=16)
'order' =>
array (size=4)
0 => string '4' (length=1)
1 => string '1' (length=1)
2 => string '2' (length=1)
3 => string '3' (length=1)
Code:
$sort = array();
foreach($array as $k) {
foreach($k as $ind=>$val){
$sort['name'][$ind] = $array['name'][$ind];
$sort['link'][$ind] = $array['link'][$ind];
$sort['order'][$ind] = $array['order'][$ind];
}
}
array_multisort($sort['order'], SORT_ASC, $sort['link'], SORT_ASC, $sort['name'], SORT_ASC);
var_dump($sort);
Output:
array (size=3)
'name' =>
array (size=4)
0 => string 'img/cs1.jpg' (length=11)
1 => string 'img/cs2.jpg' (length=11)
2 => string 'img/cs3.jpg' (length=11)
3 => string 'img/test240.jpg' (length=15)
'link' =>
array (size=4)
0 => string 'http://google.com' (length=17)
1 => string 'http://facebook.com' (length=19)
2 => string 'http://orkut.com' (length=16)
3 => string 'http://google.com' (length=17)
'order' =>
array (size=4)
0 => string '1' (length=1)
1 => string '2' (length=1)
2 => string '3' (length=1)
3 => string '4' (length=1)

Answer 3

$this_arr = array(1,2,3,0);
function my_sort_2($arr, $arrangement)
{
$flag = false;
foreach($arr as $key => $val)
{
if(is_array($arr[$key]))
{
$arr[$key] = my_sort_2($arr[$key],$arrangement);
$flag = true;
}
}
if($flag == false && is_array($arr) && is_assoc($arr) === false)
{
$temp = array();
for($i = 0; $i < count($arrangement); $i++)
{
if(isset($arr[$arrangement[$i]]))
{
$temp[$arrangement[$i]] = $arr[$arrangement[$i]];
unset($arr[$arrangement[$i]]);
}
}
//$arr = array_merge($temp,$arr);
$arr = $temp;
}
return $arr;
}
Include this function below to run my own function. Also credit to #Matt Whittingham where i got this code from
function is_assoc($array)
{
$keys = array_keys($array);
return array_keys($keys) !== $keys;
}
Now let's do some sortin'... print_r(my_sort_2($arr,$this_arr)); assuming $arr contains Shan's array.
The output is EXACTLY what you desired.
It'll search for nested array (at least intended) and see if it's in a standard numeric ordered keys (in short, not custom order - yet; and not assoc) then sort it the way you want.
Note: I know my code isn't that probably good, optimized or bug free and that's my second attempt, misunderstanding your requirements first time (see the function name?).

Answer 4

Well after some research i found a simple solution like this
asort($data['order']);
$keys = array_keys($data['order']);
$data['name'] = array_replace(array_flip($keys), $data['name']);
$data['link'] = array_replace(array_flip($keys), $data['link']);
$data['order'] = array_replace(array_flip($keys), $data['order']);
Although i dont want to apply array_replace and array_flip on all the keys but this is done for the time being. I will surely trying to find how i can do it with single instruction.