PHP resort keys from multidimensional array - php

Question

i have a multidimensional array whose index/keys (not the values) are like this:
this is how the submitted array looks
[param] => Array
(
[3] => groupedlista
[0] => groupedlistb
[2] => groupedlistc
)
[f_name] => Array
(
[3] => grouplistaa
[0] => grouplistbb
[2] => grouplistcc
)
[f_label] => Array
(
[3] => grouplistL3
[0] => grouplistL0
[2] => grouplistL2
)
this is how the order looks
0,2,3
i want that Result
[param] => Array
(
[0] => groupedlistb
[1] => groupedlistc
[2] => groupedlista
)
[f_name] => Array
(
[0] => grouplistbb
[1] => grouplistcc
[2] => grouplistaa
)
[f_label] => Array
(
[0] => grouplistL0
[1] => grouplistL2
[2] => grouplistL3
)
that's it
PS: i use a jquery sort / add / delete feature in the form and i prefer to do the final sorting php-based. the index array [$i] is required to be declared at the form.

Answer 1

$order = '0,2,3';
$out = array(); // This will hold the sorted values
$order = explode(',',$order); // Turn the order into an array
foreach ($multiDimArray as $key => $subArray) { // Loop outer array
foreach ($order as $pos) { // Loop order array
if (isset($subArray[$pos])) { // Make sure the key exists
$out[$key][] = $subArray[$pos]; // Put the correct value in the correct place
}
}
}
print_r($out);