Passing data from C++ to PHP

Question

I need to pass a value from PHP to C++. I think I can do with PHP's passthru() function. Then I want C++ to do something to that value and return the result to PHP. This is the bit I can't work out, does anyone know how to pass data from C++ to PHP? I'd rather not use an intermediate file as I am thinking this will slow things down.

Answer 1

You could have your c++ app send its output to stdout, then call it from PHP with backticks, e.g.

$output=`myapp $myinputparams`;