Messages not being received

[aliweb]

I am able to send message successfully. And I have verified my web hook. But I am unable to receive message. I am using test number provided by Facebook and haven't added my own WhatsApp business number. When I reply to that test number from WhatsApp then where exactly does that message go?

I am using following code provided by this WhatsApp Cloud API but where does it save incoming message? Does it show on screen or save it in file on disk?

<?php
require 'vendor/autoload.php';
define('STDOUT', fopen('php://stdout', 'w'));

use Netflie\WhatsAppCloudApi\WebHook;


$payload = file_get_contents('php://input');
fwrite(STDOUT, print_r($payload, true) . "\n");

// Instantiate the Webhook super class.
$webhook = new WebHook();

fwrite(STDOUT, print_r($webhook->read(json_decode($payload, true)), true) . "\n");