iCal Library for PHP

Markus Poerschke has PHP package that provides an abstraction layer for creating iCalendars:

use Eluceo\iCal\Component\Calendar;
use Eluceo\iCal\Component\Event;
 
$vCalendar = new Calendar('www.example.com');
$vCalendar->setName('Example Calendar');
$vCalendar->setTimezone('America/New_York');
 
$vEvent = new Event();
$vEvent
    ->setDtStart(new \DateTime('2012-12-24'))
    ->setDtEnd(new \DateTime('2012-12-24'))
    ->setNoTime(true)
    ->setSummary('Christmas');
 
$vCalendar->addComponent($vEvent);
 
header('Content-Type: text/calendar; charset=utf-8');
header('Content-Disposition: attachment; filename="cal.ics"');
 
echo $vCalendar->render();

The library supports the following iCalendar components:

• VCALENDAR
• VEVENT
• VALARM
• VTIMEZONE

After incorporating it in your application, here’s an example of linking to a calendar:

<a href="webcal://www.example.com/holidays.ics">Subscribe (iCal)</a>

You can learn more about this package, get full installation instructions, and view the source code on GitHub at markuspoerschke/iCal.