Two different kinds of arrays

Question

I have two different arrays below:

Array ( [1] => 2 [2] => 3 [6] => 1 ) ; // array1 has 3 keys and 3 value 1=>2, 2=>3, 6=>1 
Array ( [1] => 2 [6] =>2 ) ;           // array2 has 2 keys and 2 value 1=>2, 6=>1

I want to array1 and array2 which are the same key can SUM both value:

Ex: array1 "[1]=>2" and array2 "[1]=>2" want to out put like that [1]=>4; [6]=>3

What should happen to the elements that do not have a similar key in the other array? — Peter, Mar 06 '14 at 08:15
Well, what's stopping you from doing this? It's a trivial problem and easily solved with a `foreach()`. Are you just being lazy and expecting people to do your work for you? — Bojangles, Mar 06 '14 at 08:16
@CodeBird That's for summing indexed arrays, not associative arrays. — Barmar, Mar 06 '14 at 08:16
@barmar if you look just under the answer I shared, you'll see the same solution as yours. I think people should search a bit, try stuff... Then if it doesn't work, come ask... As it looks the OP neither searched nor tried :) this is trivial. — CodeBird, Mar 06 '14 at 08:24

score 2 · Answer 1 · answered Mar 06 '14 at 08:15

2

$result = array();
foreach ($array1 as $key => $value) {
    if (isset($array2[$key])) {
        $result[$key] = $value + $array2[$key];
    }
}

answered Mar 06 '14 at 08:15

Barmar

741,623
53
500
612

score 1 · Answer 2 · answered Mar 06 '14 at 08:27

1

foreach($array1 as $key => $value) {
    if(array_key_exists($key, $array2)) {
        $array1[$key] += array2[$key];
    }
}

answered Mar 06 '14 at 08:27

user3383116

392
1
7

Well, it's work correctly, thank you so much! – Sher Ah Mar 06 '14 at 08:38

Two different kinds of arrays

2 Answers2