String to multi-dimensional Array

[oerdec]

Hello all,

I know how to turn a string into an array where the parts of the string become array keys:

$string = 'one_two_three';
$array  = array_flip(explode('_', $string));
print_r($array);

Array
(
    [one] => 0
    [two] => 1
    [three] => 2
)

But how could I turn that string into a multi-dimensional array like this:

Array
(
    [one] => Array
        (
            [two] => Array
                (
                    [three] => 2
                )

        )

)

... btw. the values are not important for now.

Thanks for any help.

oerdec

[stereofrog]

function make_deep($a) {
    return count($a) ?
        array(array_shift($a) => make_deep($a)) :
        'some_val'
        ;
}

$a = array('aa', 'bb', 'cc');
print_r(make_deep($a)); 

ok?

[oerdec]

Yeah, thank you stereofrog. This is exactly what I needed.