too long

I'm using PHP to create a system that will fetch webhook payload when someone is unsubscribing newsletters, but I can figure out how to fetch the actual payload information in PHP.

Is there any POST data to fetch? How does PHP look for this POST data?

UPDATE: I may be on to something. Seems like the function http_get_request_body() will do the trick?

$http_get_request_body solves it :)

I recently ran into this issue and used the following PHP code for handling Campaign Monitor Web Hooks:

<?php
$json = file_get_contents('php://input');
$data = json_decode( $json, TRUE ); //convert JSON into array

foreach ($data['Events'] as $event)
{
    // Process each entry in the request
}

The JSON data, once converted to an array will give you data in this format:

array (
    'ListID' => 'LIST_ID_KEY',
    'Events' => array (
        0 =>
            array (
                'Type' => 'Subscribe',
                'Date' => '2014-01-01 16:00:00',
                'EmailAddress' => 'test@example.com',
                'Name' => 'John Smith',
                'CustomFields' => array (),
                'SignupIPAddress' => 'API',
            ),
        ),
)