Demystifying Passthru Unveiling the Return Value Mystery

xx with php 5 on fedora and I am trying to do the following in php: $last_line = passthru('/root/testme', $retval); echo "
"; echo $retval; @uicreative Use shell_exec instead. It returns the output. Copy $output = shell_exec('your command');. Exec is returning the exit status of msgmerge. That value can be anything from 0–255 0 being success everything else errors. If the command fails, it returns NULL and the values are not reliable for error checking. This function gets disabled when PHP runs in safe mode ... shell_exec() executes a command and returns the complete output as a string. It does not provide the exit code. The function return value is ... Try using PHP exec(); function because it returns the second two parameters by reference supplying more information and may be more useful. "; echo "Return Value: $retval"; die; ?> tylo January 16, 2012, 6:09am 2. Incase anyone else runs into this problem, I was able to ... ... return value was $return_var"; ?> public class callSMSClient{ public static void main(String[] args) { SMSClient t1 = new SMSClient(1); ... The function has no return value, so $result = NULL . We could add a return statement to the function if we wanted to, and that value would be ...