Rollcall.php - for use in tutorial published @ http://rogerstringer.com/2014/09/05/get-roll-call-twilio-conference-call/

rollcall.php

<?php
// Get the PHP helper library from twilio.com/docs/php/install
require_once('/path/to/twilio-php/Services/Twilio.php'); // Loads the library
 
// Your Account Sid and Auth Token from twilio.com/user/account
$sid = "ACXXXXX"; 
$token = "YYYYY"; 
$client = new Services_Twilio($sid, $token);

$response = new Services_Twilio_Twiml();

if( isset($_REQUEST['ConferenceSid']) ){

	$participants = $client->account->conferences->get( $_REQUEST['ConferenceSid'] )->participants;
	$cnt = count( $participants );
	$response->Say(  "There are ".$cnt." callers in this conference" );

	foreach ($participants as $participant) {
		$call = $client->account->calls->get( $participant->callsid );
		$response->Say( $call->from );
	}

}

$response->Redirect("conferencemod.xml");
print $response;
?>