Last active
October 4, 2016 21:55
-
-
Save freekrai/9613278 to your computer and use it in GitHub Desktop.
Detect retina resolution in Google Analytics
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<?php | |
$google_analytics_id = 'UA-YOUR-ANALYTICS-ID'; | |
$domain = preg_replace('/^www\./', '', $_SERVER['SERVER_NAME']); | |
?> | |
<script> | |
(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', '<?php echo $google_analytics_id ?>', '<?php echo $domain; ?>'); | |
var pixelRatio = (window.devicePixelRatio >= 1.5) ? "HiDPI" : "1X"; | |
if (window.devicePixelRatio){ | |
ga('set', 'dimension5', pixelRatio ); | |
} | |
ga('send', 'pageview'); | |
</script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment