PHP array change array structure

Question

I have an array in the following form,

Array
(
    [foo] => Array
        (
            [3] => hello
            [1] => world
        )
    [bar] => Array
        (
            [3] => Some other stuff
            [1] => Some more stuff 
        )
    [baz] => Array
        (
            [3] => value
        )
)

How could I have it on the following form:

Array
(
    [3] => Array
        (    
            [foo] => hello
            [bar] => Some other stuff           
            [baz] => value
        )
    [1] => Array
        (
            [foo] => world
            [bar] => Some more stuff  
        )
)

Thanks

In the second code block: what is the significance of [bar][1] => Some more stuff? — Treffynnon
– Treffynnon, Commented Apr 11, 2011 at 16:35
[bar][1] is really not making sense here. In fact, none of these keys are making sense. Please clarify. — No Results Found
– No Results Found, Commented Apr 11, 2011 at 16:37
You could accomplish it in about three lines of code, with two nested foreach loops. Did you try this yourself before asking us to do it for you? — user229044
– user229044 ♦, Commented Apr 11, 2011 at 16:37
@Josh Darrow: Don't forget to accept the correct answer. Just tick the check mark next to it. If you don't get in the habit now you will be doomed on this site. — No Results Found
– No Results Found, Commented Apr 11, 2011 at 16:49

jondavidjohn · Accepted Answer · 2011-04-11 16:40:38Z

3

$array;  //<--- assuming this is the array you are starting with

$new_array = array();  //<--- This is the new array you're building

foreach($array as $i=>$element)
{
    foreach($element as $j=>$sub_element)
    {
        $new_array[$j][$i] = $sub_element; //We are basically inverting the indexes
    }
}

answered Apr 11, 2011 at 16:40

jondavidjohn

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