Add Google Analytics to WordPress Theme functions.php

WordPress Google Analytics

function init_analytics() {
  $analytics = '<script type="text/javascript">

                  var _gaq = _gaq || [];
                  _gaq.push([\'_setAccount\', \'UA-XXXXXXXX-X\']);
                  _gaq.push([\'_trackPageview\']);

                  (function() {
                    var ga = document.createElement(\'script\'); ga.type = \'text/javascript\'; ga.async = true;
                      ga.src = (\'https:\' == document.location.protocol ? \'https://\' : \'http://\') + \'stats.g.doubleclick.net/dc.js\';
                    var s = document.getElementsByTagName(\'script\')[0]; s.parentNode.insertBefore(ga, s);
                  })();

                </script>';

  echo "\n" . $analytics;
}

if (!is_admin()) {
  //load front-end options here.
  if(!current_user_can( 'manage_options' ) ) {
    add_action('wp_footer', 'init_analytics', 35);
  }
}