Google Tag Manager

Hello,

This plugin is for PHP code when the Google tag manager code is a HTML and JS code. But even so, this plugin accept the Google tag manager code. Just wrap your Google tag manager code in PHP function, like this:

function google_tag_manager() {
   ?>

      <!-- Google Tag Manager -->
      ADD HERE THE GOOGLE TAG MANAGER CODE
      <!-- End Google Tag Manager -->

   <?php
}
add_action('wp_head', 'google_tag_manager');

And your code will work.