Ok, I give up. I've spent a large chunk of the day on this and it's just not happening. I don't understand how to get either a 1 or 0 from combining $value & 1, $value & 2, $value & 4 et al. Using the number 51 as my input each time, I get these values - $value & 1 gives 1, $value & 2 gives 2, $value & 4 gives 2, $value & 8 gives 0, $value & 16 gives 16, $value & 32 gives 32, $value & 64 gives 0, $value & 128 gives 0. It's not making sense to me...

In reply to Re: Bitwise operators by thevoid
in thread Bitwise operators by thevoid

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