GAPI results do not match results in Google Analytics

What steps will reproduce the problem?

1. Go to Google Analytics. Click 'site content'. Then go to the advanced tab 
and include only results that have the hostname with the value of a 
'myhostname' or whatever your domain is. Limit the dates from 1/1/13 to 8/31/13.

2. In my script I have the following code:

define('ga_email','xxxxxxxxx@gmail.com');
define('ga_password','xxxxxxxxx');
define('ga_profile_id','xxxxxxxxx');
require 'gapi.class.php';

$ga->requestReportData('xxxxxxx',array('hostname'),array('pageviews'),null,'host
name=@myhostname','2013-01-01','2013-08-31',null,null,null);

<?php echo $ga->getPageviews() ?>

3.

What is the expected output? What do you see instead?

The program outputted 8,069,048
The value that Google Analytics showed was 9,080,708

Why are they not the same?

What version of the product are you using? On what operating system?

gapi 1.3
mac  OS X 10.8.4 

Please provide any additional information below.

Original issue reported on code.google.com by yish...@gmail.com on 12 Sep 2013 at 5:20

andeedee / gapi-google-analytics-php-interface

GAPI results do not match results in Google Analytics #100