google-tag-manager-php

This class provides some simple PHP helper functions for implementing Google Tag Manager within your website.

Getting Started

You can install this package using Composer by adding this line to your composer.json require statement.

"antoniotajuelo/google-tag-manager-php": "dev-master"

And then run from terminal:

sudo composer update

Code Sample

use AntonioTajuelo\Gtm\Gtm;

Gtm::renderContainer('GTM-XXXXXX');
/* This will render the following container:
<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-XXXXXX"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<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=
'//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-XXXXXX');</script>
*/

Gtm::datalayerPush(['user_id' => 1]);
/* This will trigger the following datalayer push:
<script>dataLayer.push({'user_id':1});</script>
*/

Methods:

• Gtm::renderContainer($container_id,$datalayer_items_array)
• Gtm::datalayerPush($datalayer_items_array)
• Gtm::datalayerRemember($datalayer_items_array)

renderContainer Method

Description

Renders a Google Tag Manager container.

Parameters

• $container_id (required): The id of your container. You can get this value from your Google Tag Manager account admin panel.
• $datalayer_items_array (optional): Array of key-value items to be added to the datalayer.

datalayerPush Method

Description

Use this method for populating your datalayer. When this method is called BEFORE the container rendering, it will populate the datalayer at the time it is declared in the HTML code. When this method is called AFTER the container has been rendered, it will render JavaScript dataLayer.push({...}) calls.

Parameters

• $datalayer_items_array (required): Array of key-value items to be added to the datalayer.

datalayerRemember Method

Description

This method is intended for collecting datalayer information in those parts of your application not rendering HTML code. All datalayer items added through this method would be reminded until a container is rendered on a HTML page, when they would finally be triggered.

Parameters

• $datalayer_items_array (required): Array of key-value items to be added to the datalayer.