Create 12 months and add values to months

I am creating 12 months and adding data to specific months if it is available.
My array works as far as creating the months and adding to specific months, but I am having issues with adding up values, rather than adding the set values via key, its looping multiple times and adding values each pass.

Desired outcome is
[1-4] = 0, [5]: 172427.89, [6] = 0 ,[7]: 166978.41 + 76752.38 = 243,730.79, [8-12] = 0

Current Output

Array
(
    [1] => 0
    [2] => 0
    [3] => 0
    [4] => 0
    [5] => 1206995.23 //should be 172427.89
    [6] => 0
    [7] => 1218653.95 // should be 243,730.79
    [8] => 0
    [9] => 0
    [10] => 0
    [11] => 0
    [12] => 0
)

My Code

<?php
$arraydb = array(
array(
    'id' => 47025,
    'date_issued' => '2022-05-23',
    'job_id' => 58178,
    'status_id' => 35,
    'total' => 172427.89,
    'retention' => 0.00,
    'is_retainage' => 0,
    'stage' => 'Approved'
),
array(
    'id' => 47187,
    'date_issued' => '2022-07-01',
    'job_id' => 58178,
    'status_id' => 35,
    'total' => 166978.41,
    'retention' => 0.00,
    'is_retainage' => 0,
    'stage' =>'Approved'
),
array(
    'id' => 47293,
    'date_issued' => '2022-07-29',
    'job_id' => 58178,
    'status_id' => 30,
    'total' => 76752.38,
    'retention' => 0.00,
    'is_retainage' => 0,
    'stage' => 'Approved'
)
);

for ($i = 1; $i < 13; $i++) {
foreach ($arraydb as $key => $value) {
    $newDate = strtotime($value['date_issued']);

    if (isset($fullmonths[date('n', $newDate)])) {
        //if month is already found, add more values
        $fullmonths[date('n', $newDate)] += $value['total'];
    } else {
        $fullmonths[$i] = $value['total'];
    }
}
$fullmonths[$i] = 0;
}

// [5]: 172427.89
// [7]: 166978.41 + 76752.38 = 243,730.79
print_r($fullmonths);

>Solution :

It’s simpler than that. You should first initialize the array to zero’s. Then you can add each total to the correct month.

for ($i = 1; $i < 13; $i++) {
    $fullmonths[$i] = 0;
}

foreach ($arraydb as $key => $value) {
    $newDate = strtotime($value['date_issued']);
    $month = date('n', $newDate);
    $fullmonths[$month] += $value['total'];
}