[RESOLVED] 8 byte binary file to ASCII

[leatherback]

Dear all,

I need to convert 8 byte floating point (C++ data type: double) files to ASCII value arrays, and be able to create these files from input ascii values.

When I do this:

$filename = "D:\webroot\\new_hyperspectral\speclibformatted\\1sign.esl";

$handle   = fopen($filename, "rb");

$contents = fread($handle, 8);  // just read one value for now. 
                                                   // Eventually the whole file needs reading

echo bindec($contents);

it will output 8 individual characters:
¤p= ×#.@
instead of ~ 15.07, which is what I would like to get. I think this is related to the fact that fread creates a string.

I am convinced it should not be hard to do this, and I am obviously missing some detail (!?). How should I approach this?

Thanks!

Jelle.

[leatherback]

Wow, 30 views, no answer. I did find the solution. thought I'd share it:

$filename = "D:\webroot\\new_hyperspectral\speclibformatted\\1sign";
$handle   = fopen($filename, "rb");

$contents = fread($handle, filesize($filename));

$values = unpack("d*",$contents);