String to multidimensional array path

Question

I have a multidimensional array, here is a small excerpt:

Array (
    [Albums] => Array (
        [A Great Big World - Is There Anybody Out There] => A         


        

Answer 1

$array = array(...);
$path  = '/albums/a_great_big_world_-_is_there_anybody_out_there';

$value = $array;
foreach (explode('/', trim($path, '/')) as $key) {
    if (isset($value[$key]) && is_array($value[$key])) {
        $value = $value[$key];
    } else {
        throw new Exception("Path $path is invalid");
    }
}

echo $value;