[Add GTAG] Add Google Tag Manager to the website trough the script in the head and noscript in the body #enfold #wordpress

wp_head.php

add_action('wp_head', 'wpdev_hook_gtag');
function wpdev_hook_gtag() {
	?>
		<!-- Google Tag Manager -->
		<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
		new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
		j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
		'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
		})(window,document,'script','dataLayer','GTM-1234567');</script>
		<!-- End Google Tag Manager -->
	<?php
}

add_action( 'ava_after_body_opening_tag', 'wpdev_hook_gtag_body', 10);
function wpdev_hook_gtag_body() {
	?>
      <!-- Google Tag Manager (noscript) -->
      <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-1234567"
      height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
      <!-- End Google Tag Manager (noscript) -->
	<?php
}