An implementation of the "4D" bin packing/knapsack problem i.e. given a list of items, how many boxes do you need to fit them all in taking into account physical dimensions and weights.

Especially useful for e.g. e-commerce contexts when you need to know box size/weight to calculate shipping costs, or even just want to know the right number of labels to print.

See documentation for more details.

• PHP version 7.1 or higher (from version 3)
• PHP version 5.4 or higher (version 2 - still maintained)

BoxPacker is MIT-licensed.