Adding quantities to cart from a dropdown and removing from the database by kerrymsc

I have a site that is working fine, but now I want a dropdown list to purchase either 4 or 8 or 12 items, etc… I want this to add the quantities in the basket page of either 4 or 8, etc.. as selected by the user… (Budget: £20-£250 GBP, Jobs: MySQL, PHP)