Convert flat array representing a key path into a nested array terminating at an empty array

How to convert my array:

Array
(
    [0] => Apple
    [1] => Orange
    [2] => Tomato
)

To this:

Array
(
    [Apple] => Array
        (
            [Orange] => Array
                (
                    [Tomato] => Array()
                )

        )

)

I do not know how many elements will be in my array.

Output

Array
(
    [0] => Apple
    [1] => Orange
    [2] => Tomato
    [3] => Banana
    [4] => Papaya
)
Array
(
    [Apple] => Array
        (
            [Orange] => Array
                (
                    [Tomato] => Array
                        (
                            [Banana] => Array
                                (
                                    [Papaya] => Array
                                        (
                                        )

                                )

                        )

                )

        )

)

Code

$fruits = [

  "Apple",
  "Orange",
  "Tomato",
  "Banana",
  "Papaya"

];

// Result Array

$result = [

  $fruits[count($fruits) - 1] => []

];

// Process

for ($counter = count($fruits) - 2; $counter >= 0; $counter--) {

  $temp = $result;

  unset($result);

  $result[$fruits[$counter]] = $temp;

}

// Display

echo "<pre>".print_r($fruits, true)."</pre>";
echo "<pre>".print_r($result, true)."</pre>";