php exec: does not return output

Question

I have this problem: On a ISS web server, windows 7 x64 professional, zend server installed. Running this command under php:

exec(\'dir\',$output, $err);
         


        

Answer 1

Take a look at Apache error_log, maybe you'll find the error message.

Also, you can try using popen instead of exec. It gives more control because you can separate process start from output read:

$p = popen("dir", "r");
if (!$p)
    exit("Cannot run command.\n");
while (!feof($p))
    echo fgets($p);
pclose($p);