Re: How to make binary strings useful?

That should help. Thanks. "Chris" <listschris@leftbrained.org> wrote in message news:42015C3C.5010108@leftbrained.org... > I've written complete file parsers in PHP, and the only snag I've run > into is dealing Signed integers (and larger). > > > Jerry Miller wrote: > > >Is there an example of the UNIX od utility written > >in PHP? Is such a useful task even possible?? > >>From what I've seen of strings, they're completely > >opaque, so what good does it do to be able to read > >binary-safe strings from a file??? > > > > the pack() and unpack() functions are used to remove data from and > place data into binary strings. > > >Even the deprecated > >(why????) $str{$inx} notation apparently results in > >another string, because trying to printf it with the > >"%02x" format always comes out with "00." (Maybe > >that's why -- it's useless!) > > > $str{$inx} does return a single character string, in order to get the > numerical value, try using ord() > > >As an experienced C > >programmer, I'm finding PHP to be as counter-intuitive > >for low-level work as Perl is. > > > >I need to convert binary > >dumps of data structures into database table rows, and > >MySQL on my server doesn't support queries from C. > > > >I thought about writing a CGI script (in C) that > >would generate the hard-coded PHP output for > >each instance, but a URL that ends in ".cgi" is > >never intercepted by the PHP interpreter. Worse > >yet, the <SCRIPT LANGUAGE="" SRC=""> > >that works perfectly well with JavaScript is > >likewise ignored if the language is PHP! Finally, > >I'm not aware of a Content-type such as "text/php." > >What exactly was the purpose of designing yet > >another inflexible language?! > > > > > > > > Chris > > http://www.php.net/pack > http://www.php.net/unpack > http://www.php.net/ord > http://www.php.net/chr