Может поможет.
правда, тут не тонель, а запуск bash скрипта по SSH
Но это живой рабочий код с боевого сервера
Сам лишнее сотри :)

		public function svn_checout($dbname, $dbuser, $mandantname)
		{
			$connection = ssh2_connect(SSH_HOST, SSH_PORT);
			ssh2_auth_password($connection, SSH_USER, SSH_PASSWOR);
			$sftp = ssh2_sftp($connection);
			
			$script_str = "bash " . SITEPATH . CRW_INSTALL_SCRIPT . " -s " . VORLAGE_DB_HOST ." -d " . $dbname. " -u " . $dbuser . " -n " . $mandantname;
			$stream = ssh2_exec($connection, $script_str);
			$errorStream = ssh2_fetch_stream($stream, SSH2_STREAM_STDERR);
			
			// Enable blocking for both streams
			stream_set_blocking($errorStream, true);
			stream_set_blocking($stream, true);
			
			// Whichever of the two below commands is listed first will receive its appropriate output.  The second command receives nothing
			
			$output = stream_get_contents($stream);
			$error  = stream_get_contents($errorStream);
			//echo "Output: " . $output;
			//echo "<hr>";

			// Close the streams       
			fclose($errorStream);
			fclose($stream);	
			return true;
			if($error != '')
			{
				return $error;
			}
			else 
			{
				return true;
			}

		} // svn_checout()	

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