display values on homepage

Hi there, 
on my mini2440 with linux i have a c++ application wich fetches data via
RS232. I want to show these values on a homepage i wrote on the build in
Webserver. 

My question is, how could i pass the values from c++ to the php? Also i
want to write values from the Website to the c++. 

regards
ones

Have you tried taking the data via the RS232 and passing it to an
environment variable? Then using your PHP class/program to fetch the
environment variables than echo out?

There is a PHP class called for phpserial for this.