How to get notified when SMS Status changes from 'Queued' to 'Sent'?

Question

Hello,
I am trying to learn Twilio API.
When I [send SMS through php][1] script.. twilio returns a response object with status = 'queued'. Now I want to get notified when the status changes to 'sent'. Is this possible with Twilio??? and if yes then could any body advise me on how to implement his.

And how to add 'StatusCallback' url

$sms = $client->account->sms_messages->create(
            // the number we are sending from, must be a valid Twilio number
            "000-000-0000", 

            // the number we are sending to - Any phone number
            "0000000000",

            // the sms body
            "Hey Friend, Monkey Party at 6PM. Bring Bananas!"
        );

Answer 1

You're on the right track looking to the StatusCallback. When using the Twilio PHP Library any optional parameters can be set using an array as the last argument.

<?php
$sms = $client->account->sms_messages->create(
  "1235551234", 
  "1235554321",
  "Hey Friend, Monkey Party at 6PM. Bring Bananas!",
  array('StatusCallback' => 'http://example.com/sms/status.php')
);

When the message is sent (or if it fails) the data will be passed to the StatusCallback url.