merge two multidimensional array based on same ID

Question

I am facing one issue when merging two multidimensional arrays based on the same ID.

In the example below I created two arrays - Array1 and Array2. Both arrays contain objects that have an ID property. Based on the ID property, the arrays should be merged and get the result array:

Array1

Array
(
 [0] => stdClass Object
    (
        [claimtotal] => 
        [total] => 4
        [ID] => 3

    )

[1] => stdClass Object
    (
        [claimtotal] => 20
        [total] => 1
        [ID] => 4
    )
)

Array2

Array
(
 [0] => stdClass Object
    (
        [ID] =>2 
        [name] => test1

    )

[1] => stdClass Object
    (
        [ID] => 3
        [name] => test2
    )
[2] => stdClass Object
    (
        [ID] =>4 
        [name] => test3
    )

[3] => stdClass Object
    (
        [ID] => 5
        [name] => test4
    )
)

Result_array

Array
(
 [0] => stdClass Object
    (
        [ID] =>2 
        [name] => test1
        [claimtotal] => 
        [total] => 
    )

[1] => stdClass Object
    (
        [ID] => 3
        [name] => test2
        [claimtotal] => 
        [total] => 4
    )
[2] => stdClass Object
    (
        [ID] =>4 
        [name] => test3
        [claimtotal] => 20
        [total] => 1
    )

[3] => stdClass Object
    (
        [ID] => 5
        [name] => test4
        [claimtotal] => 
        [total] => 
    )
)

How can I achieve this?

Please show us what you have tried in order to get the desired result — Epodax, Aug 18 '16 at 10:26

score 3 · Accepted Answer · answered Aug 18 '16 at 10:32

if these are simple objects without methods go:

foreach($firstArray as $key => $firstObject){
foreach($secondArray as $secondObject){
    if($firstObject['id'] === $secondObject['id']){
        $firstArray[$key] = (object) array_merge((array) $firstObject, (array) $secondObject);
    }               
  }
}

looks messy but does the job without introducing another loop to go through object properties.

merge two multidimensional array based on same ID

1 Answers1