Connecting to a Program

[pbywater]

i wanna try get php to execute a command to a process/application running on a linux box(same computer).

the application that is running is called asterisk.

 

asterisk uses a CLI, how i normally do this is:

Open a terminal

type in: asterisk -r <--- connects to the CLI

          reload <----- reloads the config files

          exit <-- exits the terminal/CLI

[maxim]

take a look at PHP's exec(); function

[pbywater]

ive tried that, but it doesnt seem to let me do anything other than system commands

for example i can do

exec('ls -A')

that will work, but

exec('asterisk -r') wont work

 

[trq]

asterisk is probably not in the apache users path for some reason. Try...

 

<?php

  exec('/usr/bin/aterisk -are');

?>

[pbywater]

tried, and failed, nothing outputs :S

[trq]

exec doesn't output anything (by default), what do you expect to receive? You might try system instead.

[utexas_pjm]

If you're trying to interactively use a program, by interactively, I mean send input and receive out butput via std in / out I'd use proc_open.  Here's an example where I've used proc open to run php through the cgi binary and pass it output from std in then return the output sent by the cgi binary in std out:

 

<?php
// ..
	$descriptorspec = array(
	   0 => array("pipe", "r"),  
	   1 => array("pipe", "w"),  
	);

	$pipes = null;

                // Open our process, HTTP_CONF_CGI_EXECUTABLE holds the path to our program.
                $process = proc_open(HTTP_CONF_CGI_EXECUTABLE, $descriptorspec, $pipes);

	// This is our input pipe, anythinhg we write to here will get fed to program.
                $pipeIn = $pipes[0];
                // This is our output pipe, anything the program writes will end up here.
	$pipeOut = $pipes[1];

                // Write the contents of the request to the cgi bianry
	fwrite($pipeIn, $this->request->getContent());

                // We're done with our input stream, so close it. 
                fclose($pipeIn);
        
                // Get the output.
	$content = stream_get_contents($pipeOut);

                // We're done with our output stream, so close it.
	fclose($pipeOut);

                // Close the process.
	proc_close($process);
?>

 

Best,

 

Patrick