Capturing output from a ssh2_exec()?

[lobobr]

Greetings.

I'm executing a simple command via SSH (apachectl) and I'd like to get its output. Is it possible? I've tried all sorts of things but couldn't get to a solution. Here's my code:

$sshMethods = array(
                    'kex' => 'diffie-hellman-group1-sha1',
                    'client_to_server' => array(
                                                    'crypt' => '3des-cbc',
                                                    'comp' => 'none'
                                                ),
                    'server_to_client' => array(
                                                    'crypt' => 'aes256-cbc,aes192-cbc,aes128-cbc',
                                                    'comp' => 'none'
                                                )
                );

$sshCallbacks = array('' => '');

$sshConn = ssh2_connect('myserver.com', 22, $sshMethods, $sshCallbacks);
ssh2_auth_password($sshConn, 'you', 'wish');

ssh2_exec($sshConn, "apachectl configtest");

// And now I'm stuck

TIA,