如何在关联数组中添加相同的键值[关闭]

Question

I have an array:

$result  = array(
  'a' => 15,
  'b' => 25,
  'a' => 10,
  'c' => 6,
  'k' => 10
);

I need the sum of same key values.
i.e. output like:

  $result  = array(
  'a' => 25,
  'b' => 25,
  'c' => 6,
  'k' => 10
);

Answer 1

This is impossible, in an associative array the keys are unique by definition. It wouldn't be quite associative otherwise.