action.php

<?php 
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');

class action_plugin_googleanalytics extends DokuWiki_Action_Plugin {

	/**
	 * return some info
	 */
	function getInfo(){
		return array(
			'author' => 'Terence J. Grant',
			'email'  => 'tjgrant@tatewake.com',
			'date'   => '2014-06-14',
			'name'   => 'Google Analytics Plugin',
			'desc'   => 'Plugin to embed your google analytics code for your site. Now updated to support the new Google Universal Analytics.',
			'url'    => 'https://www.dokuwiki.org/plugin:googleanalytics',
		);
	}
	
	/**
	 * Register its handlers with the DokuWiki's event controller
	 */
	function register(&$controller) {
	    $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE',  $this, '_addHeaders');
	}

	function _addHeaders (&$event, $param) {
		global $INFO;
		if(!$this->getConf('GAID')) return;
		if($this->getConf('dont_count_admin') && $INFO['isadmin']) return;
		if($this->getConf('dont_count_users') && $_SERVER['REMOTE_USER']) return;
		$event->data["script"][] = array (
		  "type" => "text/javascript",
		  "_data" => "(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', '". $this->getConf('GAID') ."');ga('send', 'pageview');"
		);

	}
}
?>