Using the GDPR app with cookies

How to make sure the user have the possibility to disable a cookie, goes into function.php NB! HAVE NOT BEEN TESTED BY ME:

function google_analytics_tracking_code(){
	if ( is_allowed_cookie( '_ga' ) ){
  ?>

	<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://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
</script>

<?php }
}

add_action('wp_footer', 'google_analytics_tracking_code');

See also: https://gdpr-wp.com/knowledge-base/enabling-or-disabling-functionality-based-on-consent-and-cookies/