Re: Working with internal data formats

On Thu, 2008-05-15 at 10:33 -0400, John Gunther wrote: > Iv Ray wrote: > > John Gunther wrote: > > > What technique can I use to take an 8-byte double precision value, as > > > stored internally, and assign its value to a PHP float variable without > > > having the bytes misinterpreted as a character string. > > > > Does it get misinterpreted, or do you just want to be sure? > > > > The documentation says - > > > > "Some references to the type "double" may remain in the manual. Consider > > double the same as float; the two names exist only for historic reasons." > > > > Does this cover your case? > > > > Iv > No. > > Example: I extract the 8 bytes 40 58 FF 5C 28 F5 C2 8F from an external > file, which is the internal double precision float representation of the > decimal value 99.99. Starting with that byte string, how can I create a > PHP variable whose value is 99.99? http://www.php.net/manual/en/function.unpack.php Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP