How to convert my multi-dimensional array to a 1-dimensional array?

Question

I have a problem in my array.

My array looks like this:

[[1,2,3,4],[5,6,7],[8,9,10,11,12]]

I have tried using array_merge() to merge into one array.

I have tried to merge array with array_combine(), but it still don't merge.

I want my array becomes like this:

[1,2,3,4,5,6,7,8,9,10,11,12]

score 0 · Accepted Answer · answered Aug 23 '17 at 23:24

0

function recursive_merge_array($array) {
  $resArray = array();
  $it = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
  foreach($it as $v) {
    $resArray[] = $v;
  }

  return $resArray;
}

$myArrays = [[1,2,3,4],[5,6,7],[8,9,10,11,12]];
$mergedArrays = recursive_merge_array($myArrays);
print_r($mergedArrays);

answered Aug 23 '17 at 23:24

Chol Nhial

1,227
1
8
24

Why that long since you can do it in 2 lines? – Mr Pro Pop Aug 23 '17 at 23:33
it's modular, the function can be moved around. – Chol Nhial Aug 23 '17 at 23:34
1

it works, thankyou very much – Abdan Syakuro Aug 24 '17 at 00:41

score -1 · Answer 2 · answered Aug 23 '17 at 23:21

This works, but i'm not 100% if its the best solution for this problem...

$orignalArray = [[1,2,3,4],[5,6,7],[8,9,10,11,12]];

$newArray = array();

foreach ($orignalArray as $child){
    $newArray = array_merge($newArray, $child);
}

print_r($newArray);

How to convert my multi-dimensional array to a 1-dimensional array?

2 Answers2