从PHP调用capistrano

Question

I have a CodeIgniter app which has a controller to invoke Capistrano. Like so:

class Deploy extends Controller {

function deploy()
{
    parent::Controller();   
}

function index()
{
    $output = shell_exec("cap deploy");
    echo $output;
}


}

For some reason if I call shell_exec('ls -a') I get output. But calling cap deploy does nothing and returns nothing. Anybody have any ideas?

Answer 1

Is 'cap' in the $PATH of the user (apache?) that is running the web server?