Regarding BigBlueButton implementation in Codeigniter - php

Question

I am trying to integrate bigbluebutton into Codeigniter and after complete set i am not able to create meeting and other things.. below is the code
<?php
// Require the bbb-api file:
require_once('../includes/bbb-api.php');
// Instatiate the BBB class:
$bbb = new BigBlueButton();
/* ___________ CREATE MEETING w/ OPTIONS ______ */
/*
*/
$creationParams = array(
'meetingId' => '1234', // REQUIRED
'meetingName' => 'Test Meeting Name', // REQUIRED
'attendeePw' => 'ap', // Match this value in getJoinMeetingURL() to join as attendee.
'moderatorPw' => 'mp', // Match this value in getJoinMeetingURL() to join as moderator.
'welcomeMsg' => '', // ''= use default. Change to customize.
'dialNumber' => '', // The main number to call into. Optional.
'voiceBridge' => '', // PIN to join voice. Optional.
'webVoice' => '', // Alphanumeric to join voice. Optional.
'logoutUrl' => '', // Default in bigbluebutton.properties. Optional.
'maxParticipants' => '-1', // Optional. -1 = unlimitted. Not supported in BBB. [number]
'record' => 'false', // New. 'true' will tell BBB to record the meeting.
'duration' => '0', // Default = 0 which means no set duration in minutes. [number]
//'meta_category' => '', // Use to pass additional info to BBB server. See API docs.
);
// Create the meeting and get back a response:
$itsAllGood = true;
try {$result = $bbb->createMeetingWithXmlResponseArray($creationParams);}
catch (Exception $e) {
echo 'Caught exception: ', $e->getMessage(), "\n";
$itsAllGood = false;
}
if ($itsAllGood == true) {
// If it's all good, then we've interfaced with our BBB php api OK:
if ($result == null) {
// If we get a null response, then we're not getting any XML back from BBB.
echo "Failed to get any response. Maybe we can't contact the BBB server.";
}
else {
// We got an XML response, so let's see what it says:
print_r($result);
if ($result['returncode'] == 'SUCCESS') {
// Then do stuff ...
echo "<p>Meeting succesfullly created.</p>";
}
else {
echo "<p>Meeting creation failed.</p>";
}
}
}
?>
And what parameters have to pass to create meeting in url