If you went to the supermarket to buy a conveyer belt green divider bar, and when it came to paying, she just slides it back down down the side of the belt, I replaced it and she kept sliding it back down, it can quite upset someone!
How would a PHP developer buy a green divider, in code?
How many dividers would it take and why?
If the dividers were £1.77 each, how much in total?