Add array values from array to array values - php

Question

$prices has the following values
Array
(
[0] => 824.2776
[1] => 1586.5128
[2] => 2277.8424
[3] => 2902.698
[4] => 3465.5112
[5] => 3957.4188
)
I also have some voucher codes in $vArray which looks like this:
Array
(
[voucher1] => 30
[voucher2] => 40
)
I would like to create prices which have a percentage subtracted. In this case 30% and 40% ... just not sure how.
foreach($prices as $price){
foreach($vArray as $key => $value){
$prices[] = ($value / $price) * 100;
}
}
The above foreach is creating these additional array items in $prices
[6] => 3.6395505591805
[7] => 1.8909396759988
[8] => 1.3170358054622
[9] => 1.0335212274925
[10] => 0.86567315090484
[11] => 0.75806988130748

Answer 1

$prices = [
100,
824.2776,
1586.5128,
2277.8424,
2902.698,
3465.5112,
3957.4188
];
$vArray = [
'voucher1' => 30,
'voucher2' => 40,
];
foreach ($prices as $price) {
foreach ($vArray as $voucherId => $percentage){
$prices[] = $price * (1 - ($percentage / 100));
}
}
print_r($prices);
Output:
Array
(
[0] => 100
[1] => 824.2776
[2] => 1586.5128
[3] => 2277.8424
[4] => 2902.698
[5] => 3465.5112
[6] => 3957.4188
[7] => 70
[8] => 60
[9] => 576.99432
[10] => 494.56656
...
[20] => 2374.45128
)