Dynamic multidimensional array keys for class property

Question

Is it possible to create multidimensional array with its keys defined in array? Yes, it is, according to bunch of Stack Overflow answers. Here is one: Dynamic array keys

function insert_using_keys($arr, array $path, $value) { // See linked answer }
$arr = create_multi_array($arr, array('a', 'b', 'c'), 'yay'));
print_r($arr);

Prints

Array ( [a] => Array ( [b] => Array ( [c] => yay ) ) )

Would the same be possible for class properties?

This is a barebone version of my Collection class. Method set_at should add a multidimensional array to $data property the same way insert_using_keys function does.

class A {

    protected $data = array();

    public function set($key, $value) {
         $this->data[$key] = $value;
    }

    public function set_at(array $keys, $value) {

    }

}

I've tried a several modifications of the insert_using_keys to no avail. I was able to set the keys to the property, but not assign value "to the last one".

Would someone point me in the right direction please? Thanks in advance!

@Stefan: The code did not "almost work". I was just able to set keys recursively. If you think that would help the question, I can recreate it. — Petr Cibulka, Jun 23 '15 at 07:21

score 0 · Accepted Answer · answered Jun 23 '15 at 07:40

In the midst of recreating the "key-setter" function, I was able to answer my own question (was it your intention all along, Stefan?).

Here is the code:

public function set_at(array $keys, $value) {

    $first_key = array_shift($keys);

    foreach (array_reverse($keys) as $key) {
        $value = array($key => $value);
    }

    $this->data[$first_key] = $value;

}

Dynamic multidimensional array keys for class property

1 Answers1