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    First of all, I would like to say that I appreciate the people who spend time and create the katas.
    Thank you.
    I just want you to know that I am not just criticizing by posting this.
    I want to understand what is going on so I can attempt this kata.

    In general, I don't understand how the bogof items work. I know what it stands for. But, how can there ever be an odd amount for them? If you buy one, you get a free one. There is always an even number.

    Specifically: In the one example in the description, the amount for Chocolate is 5 and OJ is 15. This is supposed to return 26.25 according to the description. So, to work it out on paper...err...in the computer...whatever...

    OJ would be:
    15 .x 1.5 = 22.5
    22.5 - 2.25 (10% discount) = 20.25

    So, that means the Chocolate should cost $6. No discount amount.
    How is this calculated with a price of 2?
    The only thing I can figure out is that you would round up to the next integer for half of an odd item amount for a bogof item to solve this kata. So, you would use 3 for this test case.

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    PHP Translation Kumited - please carefully review and approve :D