PHP - 折叠多维数组

Question

$result = Array
          (
              [0] => Array
                     (
                         [Product] => Array
                                      (
                                          [id] => 3
                                      )

                     )

          )

我有上面的数组，如何将其折叠为$result = 3

Answer 1

$result = $result[0]['Product']['id']; // TA DA

Answer 2

只做

$result = $result[0]['Product']['id']; // gives 3