https://github.com/riaf/selfish/tree/develop/src/Selfish/iCalendar

gistfile1.aw

<?php
require_once __DIR__ . '/path/to/src/Selfish/Loader.php';
Selfish\Loader::register();

use Selfish\iCalendar\iCalendar;
use Selfish\iCalendar\Component\Event;
use Selfish\iCalendar\Component\Timezone;

$ical = new iCalendar();
$ical->addComponent(new Timezone);

$event = new Event();
$event->setUid(uniqid('wozozo'));
$event->setSummary('wozozoの会');
$event->setStartAt('2011-11-16 19:00');
$event->setEndAt('2011-11-16 20:00');
$event->setDescription('wozozoとwozozoがwozozoするよ');
$event->setCreatedAt('now');

$ical->addComponent($event);

echo $ical->render();