Abdullah Ramazanoglu dedi ki:
> $key = pack("N*", 0x12345678, 0x9abcdef0, 0x87654321, 0x0fedcba9);
>
> Well, second and third 32-bit hex values were automatically converted by
> PHP to float, before packing, because PHP tries to cast them into signed
> 32-bit integers, which can't be represented with, as they're above
> 0x7fffffff (2^31-1). So, PHP casts them to floats. As a workaround I had
> to use modulo-8 values for the top hex digits. (E.g. 0x1abcdef0 instead
> of 0x9abcdef0).
This is interestingly incorrect. I've just rechecked it and seen that
pack "N" works with unsigned integers as documented.
I remember it packing large (>2^31-1) integers into float, but I don't
remember my earlier test details. Obviously I've done something wrong in
my earlier trials.
Kind regards,
--
Abdullah Ramazanoglu
aramazan ÄT myrealbox D0T cöm
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