<?php function modify_in_place($prices) { $prices[0] = 100; } function modify_location($prices) { $prices = [40, 50, 60]; } $prices = [1, 2, 3]; modify_in_place($prices); assert($prices[0] === 100); //failed! pass-by-value $prices = [1, 2, 3]; modify_location($prices); assert($prices[0] === 40); //failed! pass-by-value
You have javascript disabled. You will not be able to edit any code.