Psr7Middlewares\Middleware\GoogleAnalytics::getCode PHP Метод

    private function getCode()
    {
        return <<<GA
<script>
    (function(b,o,i,l,e,r){b.GoogleAnalyticsObject=l;b[l]||(b[l]=
    function(){(b[l].q=b[l].q||[]).push(arguments)});b[l].l=+new Date;
    e=o.createElement(i);r=o.getElementsByTagName(i)[0];
    e.src='https://www.google-analytics.com/analytics.js';
    r.parentNode.insertBefore(e,r)}(window,document,'script','ga'));
    ga('create','{$this->siteId}','auto');ga('send','pageview');
</script>
GA;
    }