Dynamic array keys

Question

I have a string like this:

$string = \'one/two/three/four\';

which I turn it into a array:

$keys = explode(\'/\', $string);

Answer 1

it's corny but:

function setValueByArrayKeys($array_keys, &$multi, $value) {
     $m = &$multi
     foreach ($array_keys as $k){
         $m = &$m[$k];
     }
     $m = $value;
}