How to tell which pins connected to the Arduino does exactly what to the LCD?

Using Arduino Displays
5

ieee488:
What do you mean by jumble the pin numbers?

In the snippet of code, LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

Will it be fine if I jumble these numbers up? like (1, 4, 2, 3, 5, 12, 11)?
Im pretty sure this wont work out, as there must be some predefined way of entering the pin numbers, such
as data pins at the last, controlling pins in front, etc.