php-ga Parse error: syntax error, unexpected T_STRING

I'm trying to do server side Google Analytics tracking and came across php-ga. For some reason this is throwing an error: Parse error: syntax error, unexpected T_STRING, expecting T_CONSTANT_ENCAPSED_STRING or '(' in /home/priedelc/public_html/refll/api_ga.php on line 85 - where 85 is the line with use UnitedPrototype\GoogleAnalytics;

Anyone got a hint for me? Thanks!

//load namespace
use UnitedPrototype\GoogleAnalytics;
//autoload import script
require_once 'autoload.php';

//initialze new tracker & session
$tracker = new GoogleAnalytics\Tracker('xxxx', 'xxxx');
$session = new GoogleAnalytics\Session();
//setup visitor
$visitor = new GoogleAnalytics\Visitor();
$visitor->setIpAddress($_SERVER['REMOTE_ADDRESS']);
$visitor->setUserAgent($_SERVER['HTTP_USER_AGENT']);

//page
$page = new GoogleAnalytics\Page('/page-name');
$page->setTitle('Page Title');
//track pageview
$tracker->trackPageView($page,$session,$visitor);

//event
$event = new GoogleAnalytics\Event();
$event->setCategory('Category');    //string, required
$event->setAction('Action');        //string, required
$event->setLabel('Label');          //string, not required
$event->setValue(1);                //integer, not required
$event->setNoninteraction('true');
//track event
$tracker->trackEvent($event,$session,$visitor);