Question

I am working on a project and I wrote two C programs that convert date and time into minutes and then back. What I want to do is pass a php variable into a C program and then have the C program return the result to a variable in php.

I realize that you can use popen or exec commands but I am unsure how to use these commands.

How would I structure the php code?
What input and output commands would I have to use in the C program? If you guys could give me a few examples that would be great. I learn better from examples.

Thanks in advance.

Answer 1

$cmd = "/path/to/prog " . escapeshellarg($something);
$c_output = shell_exec($cmd);