Posted by Richard Lynch on 03/03/05 20:42

Tom Cannaerts wrote:
> I'm processing a binary file, and in that file there is a 64bit FILETIME
> value. This value represents the number of 100-nanoseconds since 1/1/1601.
>
> I would like to convert it to a somewhat more usable value, since I
> eventually will need to display that value as a human readable date.

In addition to the BC_MATH package, there's some new-fangled extension to
PHP that does the same kind of stuff.

I'm not quite sure how you are going to get the 32 bytes into a string
suitable for sending *TO* either of those packages, however...

I'm guessing you'll have to read 32 bits, throw that into BC_MATH,
multiply by 0xFFFFFFFF, grab the next 32 bits, and add that in BC_MATH...

Then, you'll have to divide by 100-nanoseconds and/or subtract enough
seconds to get to whatever time format you want to use.

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