merge two multi-dimensional arrays by key - php

Question

How do I merge two multi-dimensional arrays using different keys that have matching values?
i.e. I want the data in arrayOne, 'Member'=> '45', to merge with the data in arrayTwo, 'id' => '45'.
I don't have access to the query, just the result array.
First Array:
arrayOne
array (
558 =>
array (
'id' => '558',
'Member' => '45',
'Status' => 'Active',
),
559 =>
array (
'id' => '559',
'Member' => '46',
'Status' => 'Active',
),
)
Second Array:
arrayTwo
array (
45 =>
array (
'id' => '45',
'Name' => 'Johnson',
),
46 =>
array (
'id' => '46',
'Name' => 'Smith',
),
)
Desired Array would be something like this:
arrayThree
array (
45 =>
array (
'id' => '45',
'Name' => 'Johnson',
'Member' => '45',
'Status' => 'Active',
),
46 =>
array (
'id' => '46',
'Name' => 'Smith',
'Member' => '46',
'Status' => 'Active',
),
)
This is the code I've most recently tried, which does merge the records, but it doesn't merge them by their matching values. Thank-you for any help!
function my_array_merge($arrayOne, $arrayTwo) {
$result = arrayThree();
foreach($arrayOne as $key => $value) {
$result[$key] = array_merge($value, $arrayTwo[$key]);
}
return $result;
}
echo "<pre>";
print_r($result);
echo "</pre>";

Answer 1

You can use array_map:
$array1 = array_combine(array_column($array1, 'Member'), $array1);
$result = array_map(function ($item2) use ($array1) {
$item1 = isset($array1[$item2['id']]) ? $array1[$item2['id']] : null;
if ($item2) {
$item2['Member'] = $item1['Member'];
$item2['Status'] = $item1['Status'];
}
return $item2;
}, $array2);
Here is working demo.