Combine two different dimensional arrays PHP

Question

I have two different dimensional arrays.

Array 1:

Array1 
(
[0] => Array
    (
        [id] => 123 
        [price] => 5
        [purchase_         


        

Answer 1

If the $array1 and $array2 are mapped by the same indexes, so they have same length, you can try:

foreach($array2 as $index=>$quantity){
  $array1[$index]['Qty'] = $quantity;
}

And it´s done! If you want to keep the original $array1 untouched, you can make a copy before the foreach.