Merge 2 Arrays and Sum the Values (Numeric Keys) - php

Question

I have 2 arrays
Array
(
[010156] => Array
(
[supp_number] => 010156
[totalamount] => 4.113,23
[debtorcred] => H
[amount1] => 4.113,23-
[amount2] =>
[amount3] =>
[amount4] =>
[amount5] =>
[amount6] =>
)
)
Array
(
[010156] => Array
(
[supp_number] => 010156
[totalamount] => 4.113,23
[debtorcred] => H
[amount1] => 4.113,23-
[amount2] =>
[amount3] =>
[amount4] =>
[amount5] =>
[amount6] =>
)
)
Is it possible that I can combine these separate arrays into one and add the values together so that the outcome will be:
Array
(
[010156] => Array
(
[supp_number] => <<<TOTAL >>>
[totalamount] => <<<TOTAL >>>
[debtorcred] => <<<TOTAL >>>
[amount1] => <<<TOTAL >>>
[amount2] => <<<TOTAL >>>
[amount3] => <<<TOTAL >>>
[amount4] => <<<TOTAL >>>
[amount5] => <<<TOTAL >>>
[amount6] => <<<TOTAL >>>
)
)
This is the function I have at the moment but I cannot seem to make it work:
function array_merge_numeric_values()
{
$arrays = func_get_args();
$merged = array();
foreach ($arrays as $array)
{
foreach ($array as $key => $value)
{
if ( ! isset($merged[$key]))
{
$merged[$key] = $value;
}
else
{
$merged[$key] += $value;
}
}
}

Answer 1

This actual calculation can be done in 2 lines of code, no need for loops:
http://codepad.viper-7.com/ieSkHQ
$arr1 = array('amount1' => 1, 'amount2' => 6);
$arr2 = array('amount1' => 2, 'amount2' => 7);
$add = function($a, $b) { return $a + $b; };
$summedArray = array_map($add, $arr1, $arr2);
print_r($summedArray);
Youl'll just need to make the appropriate adjustment to account for you nested structure.

Answer 2

Create a new empty array and loop in the first array as following:
$array1 = array('my_num' => 10, 'my_num2' => 20);
$array2 = array('my_num' => 15, 'my_num2' => 25);
$newArray = array();
foreach($array1 as $key => $value){
if(isset($array2[$key])){
$newArray[$key] = $value+$array2[$key];
} else {
$newArray[$key] = $value;
}
}
print_r($newArray);

Answer 3

$value in your case is an array, not a value. You can try this:
function array_merge_numeric_values()
{
$arrays = func_get_args();
$merged = array();
foreach ($arrays as $array)
{
foreach ($array as $key => $value)
{
if(!isset($merged[$key]))
{
$merged[$key] = array();
}
foreach($value as $kk => $vv)
{
if ( ! isset($merged[$key][$kk]))
{
$merged[$key][$kk] = $vv;
}
else
{
$merged[$key][$kk] += $vv;
}
}
}
}
}