helpers.php

EngineersBlog-GoogleAnalytics-helpers.php

<?php
if (! function_exists('notify_to_analytics')) {
    function notify_to_analytics($target_page)
    {
        $params = [];
        $params['v'] = '1';
        $params['t'] = 'pageview';
        $params['tid'] = 'UA-XXXXXXXX-XX';
        $params['cid'] = sprintf(
            '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
            mt_rand(0, 0xffff),
            mt_rand(0, 0xffff),
            mt_rand(0, 0xffff),
            mt_rand(0, 0x0fff) | 0x4000,
            mt_rand(0, 0x3fff) | 0x8000,
            mt_rand(0, 0xffff),
            mt_rand(0, 0xffff),
            mt_rand(0, 0xffff)
        );
        $params['dh'] = \Request::server('HTTP_HOST');
        $params['dp'] = '/'.$target_page;
        $params['dt'] = $target_page;
        $params = http_build_query($params, '', '&');

        $header = [
            'Content-Type: application/x-www-form-urlencoded',
            'Content-Length: '.strlen($params)
        ];

        $context = [
            'http' => [
                'method'  => 'POST',
                'header'  => implode("\r\n", $header),
                'content' => $params
            ]
        ];

        $analyticsUrl = 'http://www.google-analytics.com/collect';
        file_get_contents($analyticsUrl, false, stream_context_create($context));
    }
}