[RESOLVED] Array Logic Needed.

[zingbats]

Hey guys,

I have an array structure such: (pid = the parent ID)

Array
(
    [0] => Array
        (
            [id] => 1
            [pid] => -1
            [name] => Parent
        )

[1] => Array
    (
        [id] => 2
        [pid] => 1
        [name] => Tier 1a
    )

[2] => Array
    (
        [id] => 3
        [pid] => 1
        [name] => Tier 1b
    )

[3] => Array
    (
        [id] => 4
        [pid] => 3
        [name] => Tier 2
    )

)

This makes up a folder structure.

for example: id=4, the path is /Parent/Tier 1b/Tier 2

What I need is an easy way to generate the paths of every folder and store them in an array thus:

$arr[$id] = $path;

If it wasn't for the fact I made the array multidimensional, I would probably be able to work out how to do it. The only way I can see is to do lots of looping.

[NogDog]

The solution I would pursue would be to define the array so that the first dimension index is the ID number:

Array
(
    [1] => Array
        (
            [pid] => -1
            [name] => Parent
        )
    [2] => Array
        (
            [pid] => 1
            [name] => Tier 1a
        )
    [3] => Array
        (
            [pid] => 1
            [name] => Tier 1b
        )
    [4] => Array
        (
            [pid] => 3
            [name] => Tier 2
        )
)

That way the parent directory of, for example, "Tier 2" (id 4), would be $array[$array[4]['pid']]['name'].

[zingbats]

Yeah, I realised this would be a good strategy just before your post.

Thanks a load.

Resolved.