How can I rearrange an array by defining the key order?

Question

I have a multidimensional array, where I want to define the order of the keys of each subArray with an array. Let me make an example.

Input array:

$array = arr         


        

Answer 1

This should work for you:

Just use array_replace() for each subArray to rearrange your elements. Use $header as first argument and array_flip() it, so that the values are the keys, which define the order of the keys.

And each key, which is then found in the array ($header), will be filled with the value of it (Each subArray, $v).

As example:

Header / Key order:
       Array ( [name] =>   [version] =>   [IP] =>   ) 
                         ↑              ↑         ↑
                         └──┐           │       ┌─┘
                         ┌──┼───────────┘       │
                         │  └───────────────────┼──┐
                         │          ┌───────────┘  │
                         |          │              |
    Array ( [version] => 1 [IP] => 1111 [name] => bbb ) 
(Each) Array:

---------------------
Result:
       Array ( [name] => bbb [version] => 1 [IP] => 1111 ) 

Code:

<?php

    $header = array("name", "version", "IP");

    $array = array_map(function($v)use($header){
        return array_replace(array_flip($header), $v);
    }, $array);

?>