[PHP] PHP script and external C program

[ing.Martin Prášek]

Problem. I have a php 4.0.6. on linux as Apache module.  I need to do folowing:

I have in my script some value, for example "$value"
and  
in /bin on my linux box c language program called "something". (I need speed) . 

I need to parse $value thru stdin /bin/something program to get from its stdout a 
$parsed_value.

How to  run external program (for example  /bin/something ), write to its  STDIN  
$value and  then read from its STDOUT to  variable  $parsed_value ?


Example code needed.
 

thanx