How to set calculate items of loop in one array in PHP - php

Question

Following is my array
(
[0] => Array
(
[items] => 10.4
[Total] => 10.4
)
[1] => Array
(
[items] => 10.5
[Total] => 10.5
)
[2] => Array
(
[items] => 4.5
[Total] => 15
)
[3] => Array
(
[items] => 15.2
[Total] => 15.2
)
[4] => Array
(
[items] => 8.4
[Total] => 8.4
)
)
Here each array has items & total , I want to check if total of each item is less then 20 then set items with total in a array and also not check already checked item.
For example there are 4 items in array 0 has item 10.4 & total 10.4 then check is less then 20 if not then plus second array item means (10.4 + 10.5) again check if is greater then 20 If yes then set last checked in array like array('item'=>10.4, 'total'=>10.4) , Now second time 10.4 item will skip & check with 10.5 + 4.5 etc...
I want output like.
(
[0] => Array
(
[items] => array([0]=>10.4),
[Total] => 10.4
)
[1] => Array
(
[items] => array(
[0] => 10.5,
[1] => 4.5
),
[Total] => 15
)
[2] => Array
(
[items] => array([0]=>15.2)
[Total] => 15.2
)
[3] => Array
(
[items] => array([0]=>8.4)
[Total] => 8.4
)
)
Following is my script.
$packageInfo = $ordercon->get_package_items_by_order_number($order_number); // Comes from model
// First calculate the total
foreach ($packageInfo as $key => $package) {
$packageInfo[$key]['total_weight'] = $package['quantity'] * $package['weight'];
$packageInfo[$key]['currnt_item'] = $package['quantity'] * $package['weight'];
}
// Then check count the packages ?
$packages = [];
$packageTotalWeight = 0;
$packageItemWeight = 0;
foreach ($packageInfo as $key => $package) {
if(($packageTotalWeight + $package['total_weight']) > 20){
$packages[]['final_total'] = $packageTotalWeight;
$packageTotalWeight = $package['total_weight'];
$data[] = array('items'=>$package['currnt_item'], 'Total'=>$packageTotalWeight); // For combine items
} else {
$packages[]['currntItem'] = $package['quantity'] * $package['weight'];
$packageTotalWeight += $package['total_weight'];
$data[] = array('items'=>$package['currnt_item'], 'Total'=>$packageTotalWeight);
}
}
echo "<pre>";print_r($data);
echo '<pre>packageInfo';print_r($packageInfo);