How to merge two multidimensional arrays

Question

I have two array:

$arr1 = array(
    'attributes' => array(
        'fruit'     => 'banana', 
    ),
);

$arr2 = array(
    'attributes' => array(
        'color'    => 'red', 
    ),
);

$result = array_merge($arr1, $arr2);

The result is:

Array ( [attributes] => Array ( [color] => red ) )

But my expected result:

Array ( [attributes] => Array ( [color] => red [fruit] => banana ) )

What I am doing wrong? Should I use array_merge or maybe will be better and easier just to use array_push and use only ('color' => 'red') ?

score 6 · Accepted Answer · answered Feb 22 '18 at 11:19

6

array_merge_recursive() is a great fit here.

$resultArray = array_merge_recursive($arr1, $arr2);

answered Feb 22 '18 at 11:19

Aniket Sahrawat

12,410
3
41
67

score -1 · Answer 2 · answered Feb 22 '18 at 11:27

-1

try this:

$result = array('attributes' => array_merge($arr1['attributes'], $arr2['attributes']));
print_r($result);

answered Feb 22 '18 at 11:27

Madhu

326
2
7

2

So your suggestion is to merge individually? What if there are 10 keys? – Aniket Sahrawat Feb 22 '18 at 11:29
then we need to use `array_merge_recursive()` as you mentioned @Aniket Sahrawat – Madhu Feb 22 '18 at 11:34

How to merge two multidimensional arrays

2 Answers2