[RESOLVED] Condense user matrix with unknown number of nested levels

[johanafm]

I realize it's resolved, but it seems so much easier to rewrite the owned users as references to that user (2 nested loops containing 2 more lines of code. But perhaps I missunderstood the purpose.

$accounts = array
(
    'user1' => array
        (
            'a' => null,
            'b' => null,
            'c' => null,
            'd' => null,
            'e' => null,
            'f' => null,
        ),
    'user2' => array
        (
            '1_value' => null,
            '2_value' => null,
            '3_value' => null,
            'user1' => null,
        ),

    'user3' => array
        (
            'dog' => null,
            'cat' => null,
            'orange' => null,
            'user2' => null,
        ),

    'user4' => array
        (
            'tree' => null,
            'frog' => null,
            'leaf' => null,
        ),
);

foreach ($accounts as $user => $owned)
{
    foreach ($owned as $k => $val)
    {
        if (isset($accounts[$k]))
        {
            $accounts[$user][$k] = &$accounts[$k];
        }
    }
} 

Yielding an array like (showing only $accounts['user2'])

   [user2] => Array
        (
            [1_value] => 
            [2_value] => 
            [3_value] => 
            [user1] => Array
                (
                    [a] => 
                    [b] => 
                    [c] => 
                    [d] => 
                    [e] => 
                    [f] => 
                )

        )