How to make such a function with arrays?

Question

PHP

Good afternoon, I have such a question, there are two arrays in which the number of keys is the same (but the total number may change, but they will always be equal to each other)

array(3) { 
   [0]=> string(2) "59"
   [1]=> string(2) "60" 
   [2]=> string(2) "19" 
} array(3) { 
   [0]=> string(1) "3"
   [1]=> string(1) "2"
   [2]=> string(1) "1" 
}

I need to make sure that the first key in the first array is multiplied by the first key in the second array, and so on. with each key (I repeat once again that the number may vary).
Can you please tell me how to implement this?

Answer 1

https://www.php.net/manual/en/function.array-map.php
https://ideone.com/81xf3V

Answer 2

форич (аррэй аз кей=> валуе){
   ...
}