Integrating a virtual button with your website using PHP.
Since LittleNodes virtual buttons a triggered via a URL, you can easily add notifications to alexa when certain events occur with in the code of your website.

Example:
You have a website where users register to gain access to certain content. Once a user sucessfully signed up you can use code to access a virtual button link. Below is an example using PHP to access a virtual button link.
<?php
	if($Registration=='TRUE')
	{
		$Result = file_get_contents('https://www.littlenodes.com/api/alexa/triggeralexa.php?email=email@email.com&apikey=API_KEY_HERE');
	}
?>