addition of strings inside an multidimensional array - php

Question

I have an array like this. Each array is having a user ID with scores populated dynamically. I want to add all the strings inside the array and have the key as userID

array(3) {
  [13702]=>
  array(2) {
    [0]=>
    string(1) "4"
    [1]=>
    string(1) "9"
    [2]=> .....
    ..... more elements
  }
  [13703]=>
  array(2) {
    [0]=>
    string(1) "7"
    [1]=>
    string(1) "6"
     .....
    ..... more elements
  }
  [13774]=>
  array(1) {
    [0]=>
    string(1) "7"
    .....
    ..... more elements
  }
}

I want to make it like below

array(
'13702'=> 13,//this is the sum of strings inside it
'13703'=> 13,
'13774'=> 7,
);

Please help

@GetSet I tried this $simplified = array_reduce($pplayerid, 'array_merge', array()); $simplified = array_map('intval', $simplified); but i couldn't manage to assign it to id — GeekyOwl
– GeekyOwl, Commented Dec 16, 2020 at 4:15
Please put code attempt in the actual post, not in a comment. — Julien B.
– Julien B., Commented Dec 16, 2020 at 4:16

Kevin · Accepted Answer · 2020-12-16 04:18:03Z

2

No need for array reduce, a simple array_map applying array_sum on each sub array should suffice:

$result = array_map('array_sum', $array);

answered Dec 16, 2020 at 4:18

Kevin

41.9k12 gold badges57 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

GeekyOwl Over a year ago

Awesome thank you!. I was making it worse

Collectives™ on Stack Overflow

addition of strings inside an multidimensional array - php

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related